Answer:

Step-by-step explanation:
Notice that there are 6 sums of 7 on the table provided. For example rolling a 1 and then a 6 would produce a sum of 7.
The reason the answer is 12 and not 6 is that you need to double it for the two dice. Let's say one die was green and the other was blue. The green die could be the 1 and the blue die could be the 6. That is one favorable outcome, but it could be switched. Maybe the green die was 6 and the blue die was 1.
a) (2/5) x 35 = 14 students received invitations
b) 35-14 = 21 students didn’t receive invitations
Answer:
10
Step-by-step explanation:
Given:it takes them 1.5 hours to plant one acre.
So, in order to plant all 15 acres it would take
15/1.5 = 10 hours