Which is the best estimate of -15/16 divided by (-1/2)

Each morning papa notes the birds feeding on his bird feeder. so far this month he has see. 59 blue jays, 68 black crows, 12 red robin's and 1 cardinal. what is the probability of a blue jay being the next bird papa sees

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

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