What are the solutions to the inequality (x-3)(x+5) so?

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?