Final answer:
The correct answer is that bikes are available for rent at an initial cost of $10 plus $3 per hour, which amounts to $13 for the first hour. Each additional hour adds $3 to the total rental cost. Option 3 is correct..
Step-by-step explanation:
The question refers to the cost to rent bikes, which is a topic encompassed by Mathematics, specifically under the area of linear equations. To solve this, we need to understand the initial charge and the hourly rate. The initial cost of renting a bike is $10, and the additional cost is $3 per hour. Therefore, for each hour the bike is rented, the total cost increases by $3 in addition to the initial $10. This does not constitute a per hour charge of $10, $30, or an accumulation of these amounts. Rather, the correct way to find the total rental cost is to add the fixed cost of $10 to $3 multiplied by the number of hours the bike is rented.
Based on this, if a bike is rented for one hour, the total cost would be the initial $10 plus $3 for that hour, summing up to $13 for the first hour. For every subsequent hour, you simply add an additional $3 to the total cost. This question relates to linear functions, where the number of rental hours is the independent variable and the total rental cost is the dependent variable.
The correct answer o the question 'Bikes are available for rent for $10, plus $3 per hour?' is option 3) $13 per hour for the first hour, and then an additional $3 for each additional hour.