Answer:
imma have to get back to u on that one
Answer:
x = (8+y)/3
Step-by-step explanation:
3x-y=8
Add y to each side
3x-y+y=8+y
3x = 8+y
Divide each side by 3
3x/3 = (8+y)/3
x = (8+y)/3
Answer:

And 
Step-by-step explanation:
For this case we assume that for the first square we have the following dimensions:

And we know that:

And the area for the second square would be:

And we know that the sum of areas is 65 so then we have this:

And replacing we got:


We can divide the last expression by 2 and we got:

And we can factorize the last expression like this:

And we have two solutions for
and we got:

Since the length can't be negative we have this:

And 
The answer is 50%
hope this helped you good luck
Answer:
r^2 + 14r + 33
Step-by-step explanation:
Apply the "FOIL" method for multiplying two binomials:
(r+3) (r+11) = r^2 (first terms) +
+ 33 (last terms) +
+ 11r (outer terms) +
+ 3r (inner terms)
Combining ilke terms, we get:
r^2 + 14r + 33