Question

at cycle and sport, customers can rent bikes, electric scooters, kayaks, canoes, or paddleboards by the hour. ari is renting a bike, and meg is renting an electric scooter. which expression represents the total cost for ari to rent a bike for b hours and meg to rent a scooter for s hours? 9 + 10 9 + 10 · b + s 9b + 10s (9 + b) + (10 + s)

Explanation:

Step1: Calculate Ari's cost

Ari rents a bike at $9 per hour for \(b\) hours. Using the formula \( \text{Cost}=\text{Rate}\times\text{Time}\), Ari's cost is \(9\times b = 9b\).

Step2: Calculate Meg's cost

Meg rents an electric - scooter at $10 per hour for \(s\) hours. Using the formula \( \text{Cost}=\text{Rate}\times\text{Time}\), Meg's cost is \(10\times s=10s\).

Step3: Calculate the total cost

The total cost is the sum of Ari's cost and Meg's cost. So, the total cost \(C = 9b + 10s\).

Let's check the other options:

• Option \(9 + 10\): This is just the sum of the hourly rates, not considering the number of hours.
• Option \(9 + 10\cdot b + s\): The multiplication and addition are not applied correctly according to the cost formula (\( \text{Cost}=\text{Rate}\times\text{Time}\)).
• Option \((9 + b)+(10 + s)\): This does not follow the \( \text{Cost}=\text{Rate}\times\text{Time}\) formula.

Answer:

\(9b + 10s\)