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Answer:
1) distributive property.
Step-by-step explanation:
Becca used the distributive property, in that she distributed (multiplied) 4 to all terms within the parenthesis:
4(x + 2) = 4x + 8
~
The formula of a lateral area of a cylinder:

We have r = 9 yd and H = 4 yd. Substitute:

I think it is two up and two right lol if that answers your question