Answer:
14
Explanation:
With $26 she can buy 4 cases
With $1 she can buy 4÷26 cases
With $91 she can buy (4÷26)×91
=2/13×91
=14
find out how much for 1 case
1 case = 26/4
1 case = 6.5
91/6.5 = 14
14 cases
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