Answer:
He has 13 cd's
Explanation:
To solve this problem we will use hierarchy of operations:
We know that multiplication comes before sum, therefore first we will solve the multiplication first:
25 x 2 = 50
Then, 8 + 25 x 2 - 45, transforms into 8 + 50 - 45.
Now, these operations have the same hierarchy, so we will solve them starting from the left
8 + 50 - 45 = 58 - 45 = 13.
Therefore, Al has 13 cd's