Answer:
positive 3/2
Step-by-step explanation:
You could make a small (easily repaired) leak and watch it for the amount of time you need to conclude what you need to.
Answer:
79 books
Step-by-step explanation:
45% books not returned = 55% books will be returned
145 books currently checked out
55% of 145 = 79.75
since you can't return 3/4 of a book, i would round down to 79.
Answer:
x = 4, y=-1
Step-by-step explanation:
