Answer:
The answer is C.
Explanation:
Basically, we just have the subtract 3 each time. Her initial psi is 36, so that should be the first number. Eliminate D.
Next, we are given that air is leaking out 3 psi per day. So we simply have the subtract 3 for four days. Eliminate B, since that is not division.
The only choices that are left are A and C. However, choice A contains an ellipsis, which means that the sequence will continue. However, we are only asked to find the psi left in the tire after 4 days. Thus, choice C is the only correct answer.