**The sum of a number and 7.
divided by 3. is 2."

-1

Step-by-step explanation:

7+(-1)= 6

6/3 = 2

There are no other solutions I can find to it. It says sum but technically you can add a negative number.

Don´t listen to me if you think that I am wrong. But I hope this helps!!

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.