Can someone help me with this please :( .
Please don’t answer if you don’t know.

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27