Awater park charges $25 for adult admission and $15 for children under 12. which equation can be used to determine the total cost, t, of a group of 5 adults and c children?

25 × 5 + C = T

 I'm not certain if this would be correct.

The given conditions are the following:

Charge for Lisa's work is $18 per session.
Charge for Daisy's work is $12 per session
.The projected income per day is $216 and this is represented by the equation 18x + 12y = 216

If Daisy is on sick leave, Lisa should work in the following number of session bellow:
18X + 12 (0) = 216
18X = 216
X = 216/18
X= 12

Lisa should work for the total of 12 sessions to attend $216 income that same day.