Answer:
27
Explanation:
increasing by 1 half is like dividing. 4 increased by one half would be 6, because half of four is 2, and you add that on to four. increasing 18 by half, divide 18 by 2, that = 9 then add 9 onto 18. the answer is 27
36
if we were decreasing it would be 9 but if we are increasing it, it would be 36
just multiply by 2 or divide by 2
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