Answer:

Step-by-step explanation:

Isolate d

.
Divide both sides of the equation by b

Simplify

Answer:
49
Step-by-step explanation: no idea i just evaluated like that
<span>Similar means their sides have the same ratio but don't have to be the same length. So if two rectangles are similar with a scale factor of 2 then the ratio of their areas would be 4:1</span>