Answer:
The equation is 
The solution of the equation is x=10.
Step-by-step explanation:
The volume of a rectangular prism is found using the formula V = l · w · h, where l is the length, w is the width, and h is the height.
Let x ft be the widht of the stall, then the length of the stall is x+2 ft. If each stall must be 9 ft high, then the volume of the stall is 
The volume of each stall is
then

The width cannot be negative, thus, 
I believe for question 7 the answer is $12,570.99
~ if you are having trouble with problems like these look up compound interest calculator (;
The answer is A here is the step
To calculate the cost of the fence, we have to find the length of the semi-circle. The cost of fencing the garden would be $328.52 approximately
<h3>Circumference of a Circle</h3>
To find the length of the fence, we have to calculate the circumference of the semi-circle and divide it by 2

Data;
- diameter = 27ft
- r = diameter/2 = 13.5ft
- π = 3.14
Let's substitute the values and calculate the length of the fence.

The length of the fence is equal to 42.39ft
The cost of fencing would be

The cost of fencing the garden would be $328.52 approximately
Learn more on circumference of a circle here;
brainly.com/question/14283575
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The multiplicative inverse would be 1/3.5 or 0.286