Answer:
3
Step-by-step explanation:
159-12=147-12=... keep going until you get to
15-12=3
Answer:
360
Step-by-step explanation:
You can solve this by doing 18 times 20 is 360: and then dividing 360 by 18, results in 20.
I think 7 bags do 31.5 m squared
Answer:
b-11
Step-by-step explanation:
11 fewer meaning b-11