If a small conveyor belt moves 300 pounds in 3 minutes, and another belt moves 300 pounds in 9 minutes, how long will it take both belts to move 300 pounds

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

The weight of a full steel bead tire is approximately 800 grams, while a fighter wheel weighs only 700 grams. what is the weight of each tire in pounds?