The difference between two numbers is 40. Twice the first number plus three times the second number is 100. Find the numbers. Provide a full solution.

c. (3,2,6) is the answer.

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation

actually what is a question i don't understand

to find the perimeter, you add up all the lengths of the sides. in this case you would have to add up 18+22+40+80 which equals 160.