Ali has 13 CD's
Here's how I got my answer:
Step 1: Simplify 
to 50. Which leaves us with 
Step 2: Simplify 
to 5. Which leaves us with 
.
Step 3: Simplify , to get your answer, 13.
The walker's speed is
(913 miles) / (2.5 hours) = <em>365.2 miles per hour</em>
(Hey, I just solve um. I don't get into the philosophy.)
Answer:
c = 3d
Step-by-step explanation:
answer
c = 3d
Double check:
if d = 2, c = 3 x 2 = 6
if d = 3, c = 3 x 3 = 9
if d = 5, c = 3 x 5 = 15
if d = 6, c = 3 x 6 = 18
