Answer:
Area= L*W= 13*7 = 91ft^2
Step-by-step explanation:
L= 6+W
Perimeter of the rectangle=2(L+W)=40
2(6+W+W)=40
2(6+2W)=40
12+4W=40
4W=40-12
4W=28
W=28/4
W=7ft
L=6+7=13ft
Area=L*W=13*7=91ft^2
I believe it is c I am not 100 percent tho
Answer:
0.2
Step-by-step explanation:
I hope this helps you enough.
First of all, you should know/notice that

You should also know how negative exponents work:

So, if you wanted

the answer would be x=3, but since you want 125 to be at the denominator, the answer is x=-3:

Answer:
28
Step-by-step explanation:
Let's set the ratio as
7x : 9x
If you add all the states that border an ocean and do not, you will get 48 states (because Alaska and Hawaii are not part of the continental US, as they do not touch the "main" part of the country)
So, we can write this equation.
7x + 9x = 48
Simplify.
16x = 48
Divide both sides by 16.
x = 4
Now, find how many states border an ocean. In our ratio, the number of states that border an ocean was 7x. Substitute x = 4 into 7x
7 * x = 7 * 4 = 28
The number of states that border an ocean is 28.
I hope this helps! Feel free to ask any questions!