Answer:
8
Step-by-step explanation:
because 7/10 is closer to 1 than 0
7+1 = 8
h =
S = 2πr² + 2πrh ( subtract 2πr² from both sides )
S - 2πr² = 2πrh ( isolate h by dividing both sides by 2πr )
= h
3.1 Modifying Above 1 with bar is the correct answer .