ANSWER ALL QUESTIONS PLS

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

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?