Determine whether the following expressions are equivalent to 8/7(21+42b)

In parallelogram abcd the ratio of ab to bcis 5: 3. if the perimeter of abcd is 32 find ab

Explain why the factor 1.5 is broke. into two numbers in the model.

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2