We have these opposite pairs
- 9.2 and -9.2
- 2.9 and -2.9
- 1.4 and -1.4
- 4.1 and -4.1
So all we're doing is matching each positive number with its negative version. In terms of a visual, the opposite of a number is mirrored over 0 on the number line. So for instance, the opposite of 2 is -2, with each being two units away from 0 on the number line.
9 x 0.55 = 4.95, which can be rounded to the ones place.
5 books remain.
The answer is C. Because if g equals 4 you multiply 11 times 4 to get 44 then it is a quite simple problem 44 + 5 = 49
