Hello Anna,
(a)
1.25 per ticket
? number of rides (x)
43.75 total cost (y)
Admission (z)
(b) Linear Equation - 1.25x + z = y
(c) Well you need to calculate the totaly number of rides that person took and add that to the admission cost.
Then the number must be between 18² = 324 and 19² = 361. But is that what you want to know?
3x-7=-2-6
3x=-2-6+7
3x=-1
X=-3
