Answer:
-5/2
Step-by-step explanation:
use desmos.com to graph the points
c
x + y = 98
x - y = 22
2x = 120
x = 60
x + 60 = 98
x = 38
the answer is b
Let x be the entry fee.
Let y be the cost of each ticket in dollars.
Since Keith paid the entry fee and 10 tickets,
we have x + 10y = $30.