Answer:

Step-by-step explanation:
For
, we have two cases:

Using this, we can solve all four of the problems:




Answer:
2 CUPS
Step-by-step explanation:
Write two equations, where "b" = bottles, and "c" = cups
2b +5c = b +7c -->
b = 2c
THERE ARE 2 CUPS IN A BOTTLE
Answer:
32 > 23.
Step-by-step explanation:
We are given with 32 and 23. We need to compare them. If we use number line 32 is always greater than 23.
So, 32>23
7+d=19 is the answer
subtract 7 from each side d=19-7
d=12