Topsoil a 40-pound bag of topsoil will cover a surface area of 12 ft2.
a) how many pounds of topsoil are needed to cover a surface area of 480 ft2 ?
b) how many bag of topsoil must be purchased to cover a surface area of 480 ft2 ?

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 10^4 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 10^5 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.