Lines L and m are parallel lines cut by the transversal line t. Which angle is congruent to <7?

A. <1

B. <2

C. <4

D. <5

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

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).

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?