7
15
because there are a total of 15 grid and the question asked to pick the grid that doesn't shaded
A = l * w
66 = l * (l - 5)
66 =

-5l
0 =

-5l - 66
l = 11 or 6 check which works.
A = 11 * 6, which fits.
length = 11 miles
width = 5 miles
75 and 100.
It is 25% lesser because if you subtract 75 and 100 from each other, you get 25.
Answer:
it would be 324 divided by 18. since 18 to the 2nd power is 324.
Step-by-step explanation:
Insufficient information!
however, volume will remain same in both of these figures!