7. A square is altered so that one dimension is increased by 5 inches and the
other dimension is decreased by 2 inches. If the area of the resulting
rectangle is 98 square inches, find the area of the original square.

Asap! i'm not good math and i'm lost.

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?