15ft because 12x.25=3 so 3ft is 25% of the 12ft, add the 3+12=15
First define the variables:
c = amount of children
a = amount of adults
Next create the equations to satisfy the conditions:
1) Total group is 12 people:

2) Total cost is $100 with adults costing $10 and children being $6:

First you need to multiple 7X0.02 and then add that number to 7
Answer:
75%
Step-by-step explanation:
3/12 =1/4
so 1/4 of 100% = 75%