Answer:
8.49
6.00
5.29
1.79
Step-by-step explanation:
In this question, you are given the width( 20 miles), the length(28 miles) and the height( 1 inch). You are asked to count the rain water volume which was going with formula length x width x height. But the unit asked is ft, so you need to convert them all. The calculation would be:
Water volume= length x width x height
Water volume= 20 miles x 5280ft/miles x 28 miles x 5280ft/miles x 1inch x 1ft/12inch
Water volume = 1300992000 cubic ft.
6 rows x 9 squares = 54
there are a total of 54 squares
The expression is

and the simplified form is

good luck
Its because look at it right it the letter b