What is the approximate difference between the estimates to the nearest tenth of a foot? Explain your answer

since the figure has a shape of a trap-ezium, we use the formula, for calculating the area of a trap-ezium to find its area. this formula is given by;

where and are length of the opposite parallel sides and h is the vertical height.

this gives us

square feet

nine less than a number and eight? i think you're missing sum of nine less than a number and eight? the product of nine less than a number and eight? something like