Answer:
A+3B=C
Step-by-step explanation:
A=Admisson Cost
3B=$3 per book
C=Total Cost
The sum evaluates to 144. See the linked question in the comments for details.
The answer is -48 because there is a 4/8 difference and that equals -24. Multiply by 2 and you have your answer.
Inequality symbols need to be reversed when multiplying or dividing by a negative number, because that reverses the ordering of values.
2 > 1
-2 < -1 . . . . . multiplied or divided by -1
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A more "interesting" case is when a function is applied that has a negative slope.
0 < a < b < π
cos(0) > cos(a) > cos(b) > cos(π)