We can experiment with numbers to find the average of 93% for the grading period. We add 87 + 98 + 94 = 279 (the third number is an experimental number I plugged in). We then divide by 3 (the amount of numbers we used to get 279, which is 3. So 279 / 3 = 93.
I forgot the correct method of how to solve this question, however, the answer is correct.
Jay needs to earn at least a 94 to receive a 93 average.
