So if you follow the PEMDAS rule (multiplying first...even though my middle schooler says that's "bunk" because there are no parentheses present 😀), the answer is
15. If you don't follow the PEMDAS rule (and just go left to right with no regard to the order of operations...that's what I did until I was shown the error of my ways!), the answer is
60.
Which leads us to the true value of this equation...
No more math on ADC!