If you increase a number by 4.5%, then you're adding 4.5% of that number to 100% of that number. So essentially you just multiply 14187.13 by 104.5%, or 1.045 to find the answer, which is 14,825.55.
It’s is greater it would only be equal if you multiplied it by 100
-2b + 7 > 27.5
- 2b > 27.5 - 7
- 2b > 20.5
b < - 10.25
C = child tickets
a= adult tickets
c + a = 157
6.20c + 9.30a = 1178.00
6.20c + 9.30a = 1178.00
-6.20c -6.20a = -973.40
3.10a = 204.60
a = 66 adult tickets
c + 66 = 157
-66. -66
c= 91 child tickets
