-2(y-4)-3(2y+3)+4(y-1) simplify

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

M∠abc=138° and m∠def=31° . which statement is true about ∠abc and ∠def ? a: the angles are neither complementary nor supplementary. b: the angles are complementary. c: the angles are supplementary.