Please help me with the so i can pass

Question and answers are in the attached picture. you so much in advance.

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.