Simplify 2x-4 3xy a. b. c. 4y2 d. 2 answer is d. 3x5y

Apple pie is removed from 350 degree oven. temperature of the pie t minutes after being removed id given by the function t(t)=72+268e-0.068t

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.