Ari is starting a yard service business. He charges a flat rate of $10 plus an additional $15 per hour, regardless of the service. Create a function and use a table to determine how much Ari will make if he works for 1, 1.5, 2, 2.5, and 3 hours.

A. (1, 25), (1.5, 32.5), (2, 40), (2.4, 47.5), (3, 55)
B. (1, 16), (1.5, 16.5), (2, 17), (2.5, 17.5), (3, 18)
C. (15, 1), (17.5, 1.5), (20, 2), (22.5, 2.5), (25, 3)
D. (1, 5), (1.5, 7.5), (2, 10), (2.5, 12.5), (3, 15)

1 answer

To create a function for Ari's yard service business, we need to represent the total earnings based on the hours worked. The total fee can be calculated using the following formula:

\[ \text{Total Earnings} = 10 + 15 \times \text{Hours} \]

Now we can plug in the different amounts of hours Ari works to calculate his total earnings:

  1. For 1 hour: \[ \text{Total Earnings} = 10 + 15 \times 1 = 10 + 15 = 25 \]

  2. For 1.5 hours: \[ \text{Total Earnings} = 10 + 15 \times 1.5 = 10 + 22.5 = 32.5 \]

  3. For 2 hours: \[ \text{Total Earnings} = 10 + 15 \times 2 = 10 + 30 = 40 \]

  4. For 2.5 hours: \[ \text{Total Earnings} = 10 + 15 \times 2.5 = 10 + 37.5 = 47.5 \]

  5. For 3 hours: \[ \text{Total Earnings} = 10 + 15 \times 3 = 10 + 45 = 55 \]

Now we can summarize the results in a table:

| Hours Worked | Total Earnings | |--------------|----------------| | 1 | 25 | | 1.5 | 32.5 | | 2 | 40 | | 2.5 | 47.5 | | 3 | 55 |

Comparing with the options provided, the correct option is A: (1, 25), (1.5, 32.5), (2, 40), (2.5, 47.5), (3, 55).