The radius of a circle is 21 in. What is the precise distance around the circle?

What is the inverse of the function f(x) = 2x + 1?

Match each polynomial with its factorization.

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.