Answer:
5a
Step-by-step explanation:
h(a) = 2a+ 5
g(a) = 3a−5
h(a)+g(a)
(2a+5)+(3a-5) (substitution)
2a+5+3a-5 (open parentheses)
5a+0 (solve)
5a
We can set up an equation: x * (x + 5) = 564, where x is the length of the rectangle we are trying to solve. Using the quadratic formula to solve this, we eventually come up with approximately 21.38 as a value for x. We can verify this by typing 21.38 * (21.38 + 5) into a calculator and seeing that it approximately equals 564.
B because distributive property goes like this:
a(b+c)
a(b)+a(c)
That's just an example though
