Hi I need help with variation and applications for precalc. Please dont make it to wordy. Thanks

' Reminder. \" LlVE Thursday (Lil ': X lnstagiam X wk Course Hem PrErCalculus 6 C classroom.goog|e.com 7. The weight M ofan object on Mars varies directly as its weight E on Earth. A person who weighs 95 lb on Earth weighs 35.9 lb on Mars. How much would a loo-lb person weigh on Mars? 8. Find an equation of variation for the given situation y varies inversely as the square of x, and y = 6 when x = 3 y varies directly as the square of x, and y = 6 when x = 3 y varies directly as x and inversely as z, and y = 4 when x = 12 and z = 15 y varies jointly as x and z and inversely as w, and y = gwhen x = 2,z = 3. and w = 4 y varies jointly as x and z and inversely as the square of w, and y = gwhen x= 16,z= 3,andw= 5, Wind resistance, or atmospheric drag, tends to slow down moving objects. Atmospheric drag variesjointly as an object's surface area A and velocity v. If a car traveling at a speed of 40 mph with a surface area of 37.8 ft2 experiences a drag of 222 N (Newtons), how fast must a car with51 ft2 of surface area travel in order to experience a drag force of 430 N? 10. The weight w of an object varies inversely as the square of the distance d from the center of the earth. At sea level (3978 mi from the center of earth), an astronaut weighs 220 lb. Find his weight when he is 200 mi above the surface of the earth 11. The volume V of a given mass of a gas varies directly as the temperature T and inversely as the pressure P. If V = 231 cm3 when T = 42 and P = 20 kg/cmz, what is the volume when T = 30 and P = 15 kg/cmz? ,0 Type here to search ' '5 70\"F Mostly cloudy A a