Please help me out EASY!

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Match each function with its rate of growth or decay

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex