Answer: Sorry I don't know the answer but I recommend an app that will help you is called Mathpapa is really helpful and have helped me get A on test and homework
Step-by-step explanation: is htis one https://www.mathpapa.com/algebra-calculator.html
Answer:

is the answer it's was helpful to you
Perimeter=54 a.2ft b.9 missing length=4 a.light rectangle=15 dark rectangle=10 b. sum=25 5*5=25