Answer:
Hope you understand not to sure but that's what I got
B
G(4^3-1)
G(64-1)
G(63)
Square root of 63
You would need a total of 600 feet to cover your area
Then divide by 5 for every 5 feet answer would be 120 posts.
Let x = original price in dollars
x is the original price
9% of this original price is equal to 0.09x
subtract: x - 0.09x = 0.91x
The discount price is equal to 0.91x and it's equal to 90 dollars, so they must be the same value. Ie.
0.91x = 90
0.91x/0.91 = 90/0.91
x = 98.9010989
x = 98.90
So the original price is $<span>98.90</span>
First you substitute 18 into c and solve what's inside the paranthesis which is 56. Distribute the 2 to 56 and you should be getting 112 as your answer. 2x(74-c)=112 if c=18.