Answer:
Taylor can buy 7 journals without going over the cards limit.
Explanation:
The first step is to subtract what she has already spent from the gift card:
30 - 9 = 21
So now that we have the amount of money that Taylor has available to spend, we need to divide by the cost of a journal to see how many she can buy:
21 / 3 = 7
Our final answer would be 7 journals.