12 cards = $15.00
1 card = $15.00 ÷ 12 = $1.25
Answer: $1.25
4 cars
he earns $1325/car and 5000/1325=3.7 so he needs to sell 4 cars
hope this helps!
ANSWER
The product is

EXPLANATION
To find the product of

and

means we should multiply the two fractions.
We multiply to obtain,


Cancel the common factors:

Now, multiply the numerators separately and the denominators too separately.

This simplifies to,

We need a picture or something but this is what a right triangle looks like. It will have a square or a 90 degree angle