Answer:
0.6 = 60% probability of employee reimbursements exceeding $12,000 next month
Explanation:
A distribution is called uniform if each outcome has the same probability of happening.
The uniform distributon has two bounds, a and b, and the probability of finding a value higher than x is given by:

A company found that monthly reimbursements to their employees could be adequately modeled by a uniform distribution over the interval $10,000 < x < 15,000.
This means that, in thousands of dollars,

What is the probability of employee reimbursements exceeding $12,000 next month?

0.6 = 60% probability of employee reimbursements exceeding $12,000 next month