Answer:
![\$549.68](https://img.qammunity.org/2021/formulas/mathematics/middle-school/nsowzopngge7lvlamvtbvnaoq2olhxqeen.png)
Explanation:
Let be "b" the amount of money (in dollars) that Betty will have to pay for the round-trip.
According to the information provided in the exercise, the total cost of the trip from Oklahoma City to Sturgis was $824.52.
So, it the cost of the trip back will be the same, the total cost of the round-trip will be:
Since the exercise indicates that they plan to split that total cost for the round-trip in equal parts, you need to divide the Total cost of the round-trip by 3, in order to find "b".
Therefore, you get the following result:
![b=(Total\ cost)/(3)\\\\b=(\$1,649.04)/(3)\\\\b=\$549.68](https://img.qammunity.org/2021/formulas/mathematics/middle-school/smallp9v3bd26bdfp5g4knfirl75vyt7fk.png)