Use the distributive property to find the equivalent expression.
9(3 + 7k) =
+

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Drag the tiles to the correct boxes to complete the pairs. using the properties of integer exponents, match each expression with the correct equivalent expression.

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.