A= l x b
70 = 14b
divide both sides by 14
b= 5
M=12.2
(7^2)+(10^2)=149
the square root of 149 is 12.2
12,089 is less than 12,098
The first choice is the correct one.
Present area = 120 * 80 = 9600 ft^2 so the new area will be 9600 + 4400 = 14000
So if increase in length = x we have
(x + 120)(x + 80) = 14,000
x^2 + 200x + 9600 - 14000 = 0
x^2 + 200x - 4400 = 0
x = 20 feet answer
You take the 4% and multiply that by eight then you get 0.32 and you multiply that by 1000 and you get 320.00
