During a 4-hour drive a trucker driver traveled at the rate of 40 miles per hour for the first hour and 70 miles per hour for the following 3 hours. which is closest to the average rate the truck driver traveled durind these 4 hours.

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min