Please someone help it’s for a test

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.

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6