please answer all questions, wite the answer and option

The US Government has contracted with the pharmaceutical company Pfizer to obtain the first 100 million doses of Covid-19 vaccine that Pfizer manufactures If each dose contains 0.5 mL of fluid, how many total liters of vaccine must Plizer produce to fulfill this contract? of sbon Select one a 50.000 L Ob 50,000,000 L Od 200,000,000 L @d 100,000 L e 200,000 L The average distance between Earth and the Moon is 384.400 km. Somewhat surprisingly, astronomers often report distances in centimeters rather than meters or kilometers lon What would be the power on the Earth-Mars distance as reported in centimeters? 3.844 x 10794 cm Numerical Question just give the number that goes in the exponent Answer An iron meteorite has a volume of 64 cm knowing that the density of iron is 79 g/cm what is the mass of this meteorite in grams? a 56 on Ob 8.1 OC 0.12 Od 510 You are taking a trip in a rental car that has the speedometer display set to km/h. You don't have time to figure out how to change the display, so you drive using km/hr and ask your passenger to convert from km/hr to miles/hour for you You remember that 1 mile = 1.609 km. Which of the following would be the BEST EXPLANATION of the correct explanation to your passenger about how to convert 100 km/hour into miles/hour? Select one: O a multiply by (1 mile/1.609 km) because this way the unit you don't want cancels out Ob multiply by (1.609 km/1 mile) because this way the unit you don't want cancels out Oc multiply by (1 mile/1.609 km) because the thing that isn't equal to one should always be on the bottom od multiply by (1.609 km/1 mile) because the unit you don't want should always be on the bottom Taking a trip in a rental car that has the speedometer display set to km/hr. You don't have time to figure out how to change the display, so you drive using km/hr and ask your passenger to convert from km/hr to miles/hour for you. You remember that 1 mile = 1.609 km. Which of the following would be the BEST EXPLANATION of the correct explanation to your passenger about how to convert 100 km/hour into miles/hour? Select one O a multiply by (1 mile/1.609 km) because this way the unit you don't want cancels out Ob. multiply by (1.609 km/1 mile) because this way the unit you don't want cancels out OC.multiply by (1 mile/1.609 km) because the thing that isn't equal to one should always be on the bottom Od multiply by (1.609 km/1 mile) because the unit you don't want should always be on the bottom The area of a triangle is given by A (6x h) where b is the base of the triangle and h is the height. You measure a triangle to find a base of 12.2 cm and a height of 8.1 cm. What answer should you report for the area that reflects the proper number of significant figures? Answer A pan of brownies is 10.5 inches x 10.5 inches, and as you know, the area of a rectangle is given by length x Width Report the total amount (area) of brownies in this pan in square inches to the correct number of sig figs. a 11025 Ob 110.3 OC: 110.0 Od 110 O e 100 The number 0.000 000 012 grams can also be written in powers-of-ten / scientific notation as 1.2 x 10 m grams [Numerical problem: just give the number that goes in the exponent, nothing else)