Explanation:
Now, I will explain using both area and perimeter.
![6.25 + 5 + 6.25 + 5](https://img.qammunity.org/2020/formulas/mathematics/middle-school/7qiydxlwn7ufyhoridez17v33cbpme71y6.png)
![6.25 + 5 = 11.25](https://img.qammunity.org/2020/formulas/mathematics/middle-school/wa7z6gl4mqpoyrsuwyyqvctqqnb97nq8bw.png)
Now we can infer that the other 6.25 +5 will have the same sum. Therefore we have to solve this:
![11.25 + 11.25](https://img.qammunity.org/2020/formulas/mathematics/middle-school/h17n234943m6g32a2ik0gbd4k9awh3fwdw.png)
Which is:
![11.25 + 11.25 = 22.50](https://img.qammunity.org/2020/formulas/mathematics/middle-school/pfa43d9r57lq5pss1a4cbysmlcvdl8eq0a.png)
Now time to solve in the area formula.
![l * w](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ti2fpa9rrmwsxt6afly7c7fab0msjss3ju.png)
Length × Width.
First, we're starting by 6.25 × 5.
Which is 62.5.
Either, he had to pay 62.5$ (I doubt it) or he had to pay 22.50$.
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I have solved using both formulas, hope this helps, bye!