Substitute the values of a and b into the expression:
11 + 3 - 2
Add first because of order of operations (perform addition and subtraction in the order of occurrence from left to right):
14 - 2
Subtract (same justification as above just with subtraction instead):
12
Hope this helps!
I think it would be 153/60 sec which is 2.55 seconds per beat.
111.
660/6 = 110. In order to make a profit you need to sell at least one more than that.
Hope this helps.
