Can someone please help me with math.

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.

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Flvs question 3 exam: 04.10 segment one exam part two what is the measure of angle x? picture is shown