Evaluate −m2n+m2 when m=−4.

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.

Solve the formula ax+ by = c for x.

Ineed the solution to this problem and the steps.