Two angles are complementary angles if the sum of their measures is

90degrees°. Angle A and angle B are complementary angles, and angle A is 21 degrees° more than twice angle B. Find the measures of angle A and angle B.

The perimeter of a rectangle is 700 yards. What are the dimensions of the rectangle if the length is

10 yards more than the width?

The length is ___ yards and the width is ____yards.

If you could would you show the math so I can know how to do this.