An unknown number b is 10 more than an unknown number k. the number b is also k less than 8. the equations to find k and b are shown below: b = k + 10 b = −k + 8 which is a correct step to find k and b? (1 point)

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).

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. what is the percentage decrease of jane’s closet space?

Quadrilateral abcd is a parallelogram with diagonals that intersect at point e. which of the following statements is true?