Ali has 13 CD's
Here's how I got my answer:
Step 1: Simplify [tex] 25 * 2 [/tex] to 50. Which leaves us with [tex] 8 + 50 - 45 [/tex]
Step 2: Simplify [tex] 50 - 45 [/tex] to 5. Which leaves us with [tex] 8 + 5 [/tex].
Step 3: Simplify [tex] 8 + 5 [/tex], to get your answer, 13.
13 is the answer.
always use the phrase PEMDAS
P= parenthesis
E= exponents
M= multiply
D= divide
A= add
S=subtract