So for this you will be doing proportions, and in this case the equation will be 
Firstly, you will cross multiply. Your equation should look like this: 
After that, just divide 24 on each side and your answer will be 
In short, she can wrap 72 presents in 15 hours.
Conrad 11 2/3
Giovanni 12 2/3
Sally 7 1/6
Answer:
18 quarters
Step-by-step explanation:
Method A: I think is 31 because you first have to get out of the negatives which is already 12, then you have to go to positive 19 which is 19 more, so add those and you get 31.
Method B: The absolute value of the difference between the two numbers is positive 31. This is because the absolute value of -12 is 12 and the absolute value of 19 is 19. Just add.
Answer:

Step-by-step explanation:
