Answer:
Amount of money she will owe after 5 weeks is, $1,140
Explanation:
Unit rate defined as the rates are expressed as a quantity of 1, such as 3 feet per second or 4 miles per hour, they are called unit rates.
As per the given condition:
After 2 weeks, Emery will owe $456.
By definition of unit rate;
![\text{Unit rate per week} =\frac{456}{2} = \$228](https://tex.z-dn.net/?f=%5Ctext%7BUnit%20rate%20per%20week%7D%20%3D%5Cfrac%7B456%7D%7B2%7D%20%3D%20%5C%24228)
Now, to find how much money she will owe after 5 weeks.
![\text{Amount of money} = \text{Unit rate per week} \times \text{number of week}](https://tex.z-dn.net/?f=%5Ctext%7BAmount%20of%20money%7D%20%3D%20%5Ctext%7BUnit%20rate%20per%20week%7D%20%5Ctimes%20%5Ctext%7Bnumber%20of%20week%7D)
Substitute the given values we have;
![\text{Amount of money} =228 \times 5 = \$1,140](https://tex.z-dn.net/?f=%5Ctext%7BAmount%20of%20money%7D%20%3D228%20%5Ctimes%205%20%3D%20%5C%241%2C140)
therefore, after 5 weeks, she will owe $1,140