All I did was add all A's, B's, and C's separately. Than I added them all together and got 316 total surface area. I tried but I learned this sooo long ago so i'm sorry if you get it wrong. Good Luck!
ANSWER: √(5263.14) = 72.547502
10+8=5x+3x
18=8x
X=2,25
Hope it’s right
Answer:
4
Step-by-step explanation:
2(8)-3(4)
16-12
4