Answer:
You don't really need to do it, but it helps you keep things more organized and easier to follow. Imagine if you're doing some multi-variable equation,
2a + 5b + 4d + 3c + b + a + 2d
that looks like a mess, it'll be easier to look at if you put all the similar variables next to each others like this:
a + 2a + b + 5b + 3c + 2d + 4d
(a + 2a) + (b + 5b) + 3c + (2d + 4d)
now you can add them up much easier.
Answer:
1. santina drove 14 more miles than carole
2. the owner will need to buy 8 bags this week
Step-by-step explanation:
1. 203-189= 14
2. if they use 80 pounds a week and can only buy 10 pounds in one bag, they'll need 8 bags to equal 80 pounds since each bag is 10 pounds
2,-4 is you awnser. good day to you
1km=1000m
4400m=(4400/1000)km
4400m=4.4km
therefore, 4400meters is bigger
