The answer is 8 because for this question all you need to do is add 5 and 3
<em><u>The solution is (4, 4)</u></em>
<em><u>Solution:</u></em>
<em><u>Given system of equations are:</u></em>

<em><u>Substitute eqn 2 in eqn 1</u></em>

Make the right side of equation 0

<em><u>Solve by quadratic equation</u></em>

<em><u>Substitute x = 4 in eqn 2</u></em>
y = 2(4) - 4
y = 8 - 4
y = 4
Thus solution is (4, 4)
So 1 would be 5r+20 and then the second one would be
4 terms, degree of 2
The terms is the amount of “numbers” you have, which is 4
The degree is the highest power, which is x^2
I got the same book with those same answers ima bout to get it ok