Answer:
The unknown is 44
Step-by-step explanation:
We need to solve for x in the proportion given by :
11 / 1 = x / 4
multiply both sides by 4 to isolate x
11 * 4 / 1 = x
x = 44
The answer is attached.
a=1
an= an-1 -7
The 15% tip would be 50*0.15=$7.5
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