How are the slopes of perpendicular lines related?

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.

Need solving this second acceleration problem.

Empty box + box + empty box fill in the box is equal to 30 how