I think the inequality is less than or equal to (here what the sign looks like ≤ )
$2.77 dollars would be the answer I think
7(a^2+b)-4(a^2+b)
7(a^2)+7b-4(a^2)-4b
7a^2-4a^2+7b-4b
(7-4)a^2+(7-4)b
3a^2+3b
Slope is the change in Y over the change in X. It is calculated by finding the difference between the y values, and the difference in x values.
It's a parallelogram, opposite sides congruent.
6x - 7 = 2x + 9
4x = 16
x = 4
12 = y + 3
9 = y
Answer: x=4, y=9