(Checking my answers!)

Question

Marco and Drew stacked boxes on a shelf. Marco lifted 9 boxes and Drew lifted 14 boxes. The boxes that Drew lifted each weighed 8 lb less than the boxes Marco lifted.
m − 8
14(m − 8) **
9(m + 8)
112m

Two stores sell the same refrigerator for the same original price. Store A advertises that the refrigerator is on sale for 15% off the original price. Store B advertises that it is reducing the refrigerator’s price by $150. When Stephanie compares the sale prices of the refrigerator in both stores, she concludes that the sale prices are equal.
0.85p = p – 150
0.85(p – 150) = p
0.15p = p − 150 **
0.15p = p + 180


Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2.4 h, and Car B traveled the distance in 4 h. Car A traveled 22 mph faster than Car B.
(Not multiple choice!)
My answer is that Car A traveled 55 mph faster than Car B

In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the money in his account by 20%. When they compared their balances, they found that they were still equal.
How much money did they both have in their accounts in October?
(Not multiple choice!)
Having a hard time with this question..

Answer 1

#1 ok

#2 - the discount was 15%, meaning the actual price was 85%, so
0.85p = p – 150

#3
WHAT? They just told you that A traveled 22 mph faster than B!
If car B has speed s, then
2.4(s+22) = 4s
This will give you B's speed.
The distance traveled was 4s

#4
If the amount at the end of October was x, then we have

x + 120 = 1.20x

Answer 2

In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the money in his account by 20%. When they compared their balances, they found that they were still equal.
How much money did they both have in their accounts in October?