Let n represent the price of each chocolate bar.
The price of each box of granola bars is $2.50. This means that the cost of 1 box is
2.5 * 1 = 2.5
Also, the cost of 6 boxes of chocolate would be
6 * n = 6n
We were told that Jeralyn purchased 1 box of granola bars and 6 boxes of chocolate bars for a total price of $22.00. Thsi means that
2.5 + 6n = 22
The correct option is J