Question: After working out for 3 hours, three friends go out for lunch. Adam spends two-thirds as much money on lunch as Rick. Rick and Jose eat lunch of the same price. If Jose ate lunch worth $45, what is the cost of lunch for all three?
Answer with step-by-step thinking: Since Rick and Jose's lunch cost was the same, Adam spent 2 / 3 * 45 = $30 on his lunch. The three friends ate food worth 30 + 45 + 45 = $120.
So the answer is 120.

Question: Sally earned $1000 at work last month. This month, she received a 10% raise. How much money will she make in total for the two months?
Answer with step-by-step thinking: This month she will earn $1000 * (110 / 100) = $1100. In total, she will make $1000 + $1100 = $2100.
So the answer is 2100.

Question: Julia has $40. She spends half of her money to buy a new game for her phone. She spends a quarter of what she has left on in-game purchases. How much money does she have left?
Answer with step-by-step thinking:
Julia spend $40 / 2 = $20 on the game. After buying the game, she has $40 - $20 = $20 left. She spent $20 / 4 = $5 on in - game purchases. She has $20 - $5 = $15 left.
So the answer is 15.