Answer:
She purchased 10 tickets.
Step-by-step explanation:
She spent $21.45
x represents the amount of tickets she purchased.
So,
0.75x+4.95=21.45
If we solve for x, then we know how many tickets she got.
0.75x + 4.95 - 4.95 = 12.45 - 4.95
0.75x = 7.5
x = 10
So, she bought 10 tickets