7×3=21 so he has 7 more lawns or 2 1/3 months
You need to divide the two numbers. 15/3 = 5
For every 5 days you do 1 job
5:1
Here are the outcomes. You could also a tree diagram for this:
There are 49 outcomes for this problem. Therefore, 7/49 possible probability that 2 could be orange. To check if i'm correct, use a tree diagram or a compound principle.
