Answer:

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

Therefore, for
, we have the following cases:

Solving, we have:
.
Therefore,

147.59 is the total amount given to each brother after all purchases were made.
Answer:
d
Step-by-step explanation:
Answer:
x=+-
Step-by-step explanation:
=
+ 
=64+25
=89
x=+-
Answer:
1 1/5 or 6/5
Step-by-step explanation:
So you get 2/5 every 1/2 hour so take the amount you have and times it by 3.