Zoe goes to the store to buy soda and pizza for herself and her 5 family members. Each bottle of soda costs half a dollar and each slice of pizza costs $1. Before she leaves her house she takes just enough money to pay for her purchase. How much money did Zoe take?
Thoughts? Step-by-step reasoning:
Zoe is going to buy pizza and soda for 5 people + 1 person = 6 people. For 6 sodas, Zoe will pay 6 sodas * $0.5 / soda = $3. For 6 slices of pizza, she will pay 6 slices * $1 / slice = $6. Adding the price of the soda and pizza, Zoe paid $3 + $6 = $9.
Thus, the answer is 9.