Answer:
5 cases
Step-by-step explanation:
To find the case amount we must take the iphone out of the equation like this
1245-850 = 395
This leaves us with $395 and if each case costs $79 we must divide like this
395 / 79 = 5
Which leaves us with 5, so that must mean that Ryan bought 5 cases.
Hope this helps ( :
