PLEASE HELP ASAP For which value of x does each expression make sense:

(square root) -2x^2

(square root) (-2x)^3

(square root) (-2x)^2

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.