First, let's figure out the perimeter of the first rectangle. This is equal to 6*2 + 2*2 = 16 yards.
Now, we know that the area of the second rectangle is 7. There is only one possible combination of numbers that will multiply together to make 7, 7 and 1. This means that the length is 7 yards and the width is 1 yard. The dimensions of the rectangle are 7 yards by 1 yard.
We can check this by finding the perimeter of the second rectangle and seeing if it matches the first one. This is equal to 7*2 + 1*2 = 16, so our answer is correct.
It would cost $14.50 for half an hour so:
14.50 x 3 = 43.5 since 3 would represent 1 and a half hour.
The 15 minutes would be half of 14.50 which would be 7.25
So 43.5 + 7.25 = $50.75
There was a 75% mark up on the jacket
250 = 167.93 + x
[She needs $250, she has $167.93, and she needs x more. x represents the amount of money she still needs in order to get 250]
250 = 167.93 + x Subtract 167.93 on both sides
250 - 167.93 = 167.93 + x - 167.93
250 - 167.93 = x
82.07 = x
She needs $82.07 more
Or you could have done:
250 - 167.93 = 82.07