I’m not sure what the gate has to do with the problem, but you should just divide 780 by 120 to get 6.5. In other words, each foot costs $6.50.
15% of $70
do 15 over 100 then put 70 as your denominator cross multiply
15 times 70 =1,050 divided by 100 = [10.50 <--- answer]
70.00-10.50=59.50
Step-by-step explanation:
First find the area of the rectangle with the variables.

Now the areas are equal, so we have to solve the equation

There are only 2 graphs that have a positive association (this means the lines have a positive slope and are going up)...and that is graphs A and B. But notice A is not exactly in a straight line....linear means it has to be in a straight line. So ur answer is graph B