What is the measure of the unknown angle in the base of this pyramid?

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org

The holiday party will cost $160 if 8 people attend.if there are 40 people who attend the party, how much will the holiday party cost