I think its b, i hope this is the rigth answer this was a little tough...
Answer:
x = 3.5 is not a solution
Step-by-step explanation:
3x +2 < 12
Subtract 2 from each side
3x +2-2 < 12-2
3x< 10
Divide each side by 3
3x/3 <10/3
x < 10/3
x <3.3333333
Any number greater than 3.3333 is not a solutions
3.5 is not a solution
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➷ The formula for volume of a cylinder is:

The radius is half the diameter
Radius = 8/2 = 4
Substitute the values in:

Surface area = 
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3? I pretty sure it’s three sorry if I’m wrong
2 - 1 + 5
= 6
Hope his help