Answer:
last one
Step-by-step explanation:
calculator
282.74
πr2h
so the answer is the third one
(3, 1)
x+5y=8
-x+2y=-1
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7y=7
y=7/7=1
x+5(1)=8
x+5=8
x=8-5=3
Answer: x=3, y=1.
sorry i dont know