Final answer:
Jacinda needs to work approximately 18 hours and 29 minutes to earn enough money to purchase the computer.
Step-by-step explanation:
To calculate the number of hours Jacinda needs to work to earn enough money to purchase the computer, we can use the following steps:
- Calculate the number of driveways Jacinda needs to shovel to earn enough money: $950.40 / $22 = 43.2 driveways (round up to 44 driveways).
- Calculate the number of hours it takes Jacinda to shovel 1 driveway: 5 hours / 12 driveways = 0.42 hours (or approximately 25 minutes).
- Calculate the total number of hours Jacinda needs to work: 44 driveways * 0.42 hours per driveway = 18.48 hours (or approximately 18 hours and 29 minutes).
Therefore, Jacinda needs to work approximately 18 hours and 29 minutes to earn enough money to purchase the computer.