Please help fast im timed

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

Interpret the following expression (5y^2-7)^3/(2y)^2