I think it is -7 because the + and the - cancel each other out and you subtract 12 and 5 and keep the sign of the bigger number which is 12 so -7. I’m not 100% sure but I think it’s right.
9*15=135
15*4.8=72
9*4.8=43.2
135+72+43.2= 250.2ft (Surface Area)
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9*15*4.8=648ft (Volume)
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Hope this helps
Answer
0.9063
Step-by-step explanation:
(100.7)*(0.009)
2(z - 5) + (z - 8) =
= 2z - 10 + z - 8 =
= 2z + z - 10 - 8 = <u>3</u><u>z</u><u> </u><u>-</u><u> </u><u>1</u><u>8</u> ← the end