Answer:
569/
9 x^2−153xy−12y
Step-by-step explanation:
Well 2 to the second power would be 2 * 2 which equals 4
Answer:
39
Step-by-step explanation:
6x-15+3x+6=90
Simplify: 9x-9=90
9x=99
x=11
3(11)+6
33+6
<H= 39
To find the surface area, you just find the area of every side and then add them up.