You - 4 from 5 then 1 left then 1 multiple by 1 ....answer is 1
W = 21 - 3
weight of the tree = 21 pounds - 3 pounds
I=1.5m
m+1.5m=20
2.5m=20
m=8
20-8=12
Isobel worked 12 hours.
Answer:
2)add both sides by 6
3) multiply both sides by 7
4)divide both sides by 4
Step-by-step explanation: