Final answer:
Christine would make $65 for 5 hours of work at the same rate of $13 per hour.
Step-by-step explanation:
To find out how much Christine would make for 5 hours of work, we need to use the rate at which she made money per hour. First, we find out how much she made per hour by dividing her total earnings ($91) by the number of hours she worked (7). This gives us a rate of $13 per hour. Then, we can calculate how much she would make for 5 hours of work by multiplying the rate per hour ($13) by the number of hours (5). The result is $65. So, Christine would make $65 for 5 hours of work at the same rate.