When the air in a hot-air balloon is heated to 100 degrees Fahrenheit, each cubic foot (ft3) of air can lift about 7 grams of weight. Now that you know that air can lift weight, try answering the project questions.

a)The function g(x) converts x grams to pounds, as shown. Which composite function expresses the number of pounds that can be lifted by a balloon containing x ft3 of air?
The function is g(x)= x/453.6

b)To lift 1000 pounds, you must have ________ ft3 of air. (Round answer to the nearest cubic foot and enter only the number.)

pleaseeee help

Question

When the air in a hot-air balloon is heated to 100 degrees Fahrenheit, each cubic foot (ft3) of air can lift about 7 grams of weight. Now that you know that air can lift weight, try answering the project questions.

a)The function g(x) converts x grams to pounds, as shown. Which composite function expresses the number of pounds that can be lifted by a balloon containing x ft3 of air? 
The function is g(x)= x/453.6

b)To lift 1000 pounds, you must have ________ ft3 of air. (Round answer to the nearest cubic foot and enter only the number.)

pleaseeee help