Answer:
Step-by-step explanation:
The area of a rectangle is given by 
where 
is the length of the rectangle and 
is the width of the rectangle. Therefore, based on the information given, we can write the following equation to solve for the width:
.
The perimeter of a rectangle is given by 
. Therefore, the perimeter of the rectangle is:
.
Answer:
The commutative property
Step-by-step explanation:
a math rule that says that the order in which we multiply numbers does not change the product.
Solution: She has £36 remaining.
To solve this is fairly simple. First we multiple 72 by .4 to get 40%. This gives us 28.8.
We then subtract 28.8 by 72 to get the money she has remaining after she spends 40%. The answer to this is 43.2
Then she spends 1/6 on makeup. So we divide 43.2 by 6 and multiply again by 5, which gives us 36.
