If my grade is a 49.1 f and i get 90 points on a test what will my grade go to

Plzzz asap what is the inverse of f if f(x)=^3 sqrt x-5

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second