18.39 thats 18.386 rounded to the nerest hunderths
C because x represent the cost of books while 2 can be an additional price for the pens
The answer is log3, d/12
hope it helps
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4)input:5,6
output: 24,29
n+2
5) input : 1,2,3,4
output : -2,-4,-6,-8,-10,-12
-2n
6) input:5, 6
output: 2.5, 3
.5n