Perform the indicated operation. -6 + 6 0 -12 12

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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).