Can u guys help me plzz

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

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.