Question: Tim decides to start selling necklaces he makes. He uses 10 charms to make each necklace. Each charm cost $15. He sells the necklace for $200. How much profit does he make if he sells 30?
Answer with step-by-step thinking: Each necklace cost 10 * 15 = $150 to make. So he makes a profit of 200 - 150 = $50 each. So his total profit is 50 * 30 = $1500.
So the answer is 1500.

Question: Tim hires two bodyguards. They each charge $20 an hour. He hires them for 8 hour per day. How much does he pay them in a week if he hires them 7 days a week?
Answer with step-by-step thinking: It cost him 20 * 2 = $40 an hour for both of them. That means he pays 40 * 8 = $320 a day. So he pays 320 * 7 = $2240 a week.
So the answer is 2240.

Question: John has 10 members of his family on his father's side. His mother's side is 30% larger. How many people are there in total?
Answer with step-by-step thinking:
His mother's side is 10 * .3 = 3 people larger than his father's side. So his mother's side has 10 + 3 = 13 people. So the total number of people is 13 + 10 = 23.
So the answer is 23.