Question: At the park, Naomi saw people riding 7 regular bikes and 11 children's bikes. Regular bikes have 2 wheels and kid's bikes have 4 wheels. How many wheels did Naomi see at the park?
Answer with step-by-step thinking: For the regular bikes, there are 7 x 2 = 14 wheels. For the children's bikes, there are 11 x 4 = 44 wheels. Altogether, Naomi saw 14 + 44 = 58 wheels.
So the answer is 58.

Question: Eric, Ben, and Jack have some money. Eric has $10 less than Ben, and Ben has $9 less than Jack. If Jack has $26, how much money, in dollars, do all 3 of them have in total?
Answer with step-by-step thinking: Ben has 26 - 9 = 17 dollars. Eric has 17 - 10 = 7 dollars. They have 26 + 17 + 7 = 50 dollars in total.
So the answer is 50.

Question: Tire repair for each tire costs $7, plus another 50 cents for sales tax. If Juan needs all 4 tires repaired, how much is the final cost?
Answer with step-by-step thinking:
Juan pays 4 * 7 = 28 dollars for all four tire repairs. Juan pays 0.50 * 4 = 2 dollars in sales tax for all four tire repairs. Juan pays a total of 28 + 2 = 30 dollars.
So the answer is 30.