It should be 7.8 which is answer D
Answer:
Multiply both sides by 11 to isolate the variable.
Step-by-step explanation:
a = 55
<span>As only one team is to be made that means we have to choose 2 people from total 13 people. As the order that two people are selected does not matter here so we just have to make all possible combination of the team
So the answer is 13*12/2
answer= 78 ways</span>
