Answer:
9 kids tickets
Step-by-step explanation:
Let k = no. of kid's tickets
12 - k = no. of adult's tickets
9.50(12 - k) + 6.50k = 87
95(12 - k + 65k = 870
1140- 95k + 65k = 870
- 30k = -270
k = 9 kids
12
y=4
84=30y-9y, first you collect like terms.
84=21y, swap the sides
21y=84, devide both sides and you get y =4
Answer: You're not important basically
C. 16x+9=4x
The answer is
=12x^2 - 22x - 14
240.1