Kayla made 12 * 1.50 = 18 free - throws. Annieka made 18 - 4 = 14 free - throws.
The answer: 14
Reverse engineering the question: The basketball team is practicing their free-throws, making as many as they can in one minute. DeShawn made 12 free-throws, and Kayla made 50% more than DeShawn. If Annieka made 4 fewer than Kayla, how many did Annieka make?

Lucy needs to purchase 10 x 1.2 = 12 pounds of potato chips. So, Lucy will pay 12 x 25 = 300 cents for it. Since there are 100 cents in $1, thus, Lucy will pay 300 / 100 = 3 dollars.
The answer: 3
Reverse engineering the question: Lucy plans to purchase potato chips for a party. Ten people will be at the party, including Lucy. The potato chips cost 25 cents per pound. How much will Lucy pay (in dollars) for the potato chips if she wants each person to get 1.2 pounds?

Shelly's ten $10 bills amount to 10 x $10 = $100. She has 10 - 4 = 6 $5 bills. The 6 $5 bills amount to 6 x $5 = $30. Thus, Shelly has $100 + $30 = $130 in all.
The answer: 130
Reverse engineering the question: Shelly has ten $10 bills and four fewer $5 bills. How much money does Shelly have in all?

Since the father is walking 3 times as fast as his son, their speeds are in a ratio of 3:1 respectively. They started at the same time so they will cover distance at the same ratio of 3:1. Each portion of the distance they covered is 16 / (3 + 1) = 4m. The father covered three portions of the distance which is 3 * 4m = 12m from his end.
The answer: 12
Reverse engineering the question:
A father and a son start approaching each other at the same time from opposite ends of a hallway that is 16m long. If the father is walking three times as fast as the son, at what distance from the father's end of the hallway will they meet?