Lizzy: Rubble has $15 in his pocket and he needs to buy 2 notebooks and 2 pens. Each notebook cost $4.00 meanwhile each pen cost $1.50. How much money will be left from Rubble after the purchase?.
Me: Hmmm, let me think. I think this is the detailed solution:
The total cost of two notebooks is $4.00 x 2 = $8.00. The total cost of two pen $1.50 x 2 = $3.00. So, the total amount Rubble spent for all the stuff was $8.00 + $3.00 = $11.00. Therefore, Rubble was left off with $15.00 - $11.00 = $4.00. Final answer: 4.