Answer:
I think that this is the answer your looking for if not im sorry
Step-by-step explanation:
Assuming x = burgers, y = hot dogs
x+y=88
4.5x + 3.25y = 331
x+y=88
x=88 - y
Substitute that into
4.5(88-y) + 3.25y = 331
396 - 4.5y +3.25y = 331
-1.25y = -65
y = 52
Substitute that into
x = 88 - 52
x = 36
Answer : 36 burgers and 52 hot dogs are sold.
Hope this helps.