Answer:
x= -5/3 y-5
Step-by-step explanation:
The correct answer is 317
Answer: 37.5
Explanation: find the surface area of one side, which is 2.5*2.5=6.25 then multiply that product by six, since there’s six sides in a square, and you’ll get 37.5
Here you go, i added a bit of explanation as to why i used the numbers to help you understand the method :)