Answer:
8x + 8y
Step-by-step explanation:
Simplify
Hope this helps. Have a great day. :)
-wfz
A proportion looks like this:

It means that the quantity a,b,c and d are in the same proportion: the ratio between a and b is the same ratio between c and d.
They are particularly useful in situation when you have an example given, and you want to extrapolate the relationship for another couple.
For example, you can think of the following problem: "Five apples cost 2 dollars. How much will 8 apples cost?"
You can build the proportion

And then solve it for x:

It 27 because if u do 90% x 3% that will give u 27
The second answer which is b the answer is 10 all you do is combine like terms then plug it in and do the next step ill reply when i get the second one