Answer:
7 hours
Step-by-step explanation:
120 x 7 = 840
U have to multiply and then divide it and find that scale
Answer:
b=5
Step-by-step explanation:
- We are going to use the basics of algebra to solve this
We need to isolate b by itself to find the value of b.

Subtract 12 from both sides


318-47= 271 There are 271 non-fiction books in the library. just subtract 47 from 318 to get the answer.