Need answers to red/yellow highlighted questions Please round to correct sig figs

d. 7.70 x 10"" m - 3.95 x 10 m + 1.88 x 10" m 2 X10 -7 c. 1.III x 10' J+5.82 x 10" J - 3.01 x 10" J|3.18 X10 6 f. 9.81 x 10" molecules + 3.18 x 10- molecules - 2.09 x 10"" molecules |9 63 X10 27 g. 1.36 x 10' em + 3.456 x 10' em - 1.01 x 10'em + 5.122 x 10# cm 747 1X10 6 3. Perform the following computations, and express the result in scientific notation with the correct number of significant figures: a. 1.54 x 10" L + 2.36 x 10 s7 X10 2 b. 3.890 x 10" mm x 4.71 x 10 mm2 X10 7 c. 9.571 x 10 kg + 3.82 x 10 m 3 X10 4 d. 8.33 x 10 km + 1.97 x 10's X10 c. 9.36 x 10" m x 3.82 x 10' m x 901 x 10" m3 X10 6 f. 6.377 x 10" J + 7.35 x 10"'s 8 X10 6 4. Your electric company charges you for the electric energy you use, measured in kilowatt-hours (kWh). One kWh is equivalent to 3 600 000 J. Express this quantity in scientific notation. 3.6 X10 6 5. The pressure in the deepest part of the ocean is | | 200 000 Pa. Express this pressure in scientific notation. 1.12 x10 7 6. Convert 1.5 km to millimeters, and express the result in scientific notation. 1.5 X10 6 7. Light travels at a speed of about 300 000 km/s. a. Express this value in scientific notation. X10 b. Convert this value to meters per hour. X10 c. What distance in centimeters does light travel in 1 us? X10