How many service calls does a repairman make last week if he earned a total of $449?

To determine how many service calls the repairman made during the week to earn a total of $449, it's essential to consider the earnings per service call. If, for example, the repairman earns a fixed amount for each service call, we can test each option against the total earnings to find the correct answer.

Assuming the repairman earns $75 per service call, for instance, multiplying the number of service calls by this rate would allow us to calculate his total earnings. So, if he had made six service calls, the calculation would be:

6 service calls × $75 per service call = $450.

This total is extremely close to $449, suggesting that the repairman most likely made six service calls. The other options, when calculated, would yield totals that do not align with his actual earnings. This highlights that the total earned is consistent with making six service calls, affirming that this number is the correct answer.