A yard with dimensions of 15 m x 10 m has a flower garden in the middle. The flower garden has the dimensions of 4 m x 7 m. What is the area of the yard without the garden?

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Can any one me with the answers to these questions asap?

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?