I need answers for 9 & 10 please

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.

Solutions for 2x+7 less than or equal to 3x-5

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?