Answer:
The total cost of the apples was $5
Explanation:
The amount of apples Bob bought was
lbs.
is a mixed number.
is the same as:

If every pound of apples costs $ 1.5 and Bob bought 3.333 pounds then the amount of money he spent was 3.333 times $ 1.5. This is:

The total cost of the apples was $5