Answer:
144.51326
Step-by-step explanation:
A = 2πrh + 2π
d = 4
r = 4/2 = 2 cm
h = 9.5cm
A = 2π(2)(9.5) + 2π = 144.51326
Don't know if you need to round it or not
See below
She combined 3x and - 9x incorrectly
she should have gotten - 6 x not - 12 x
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