Im not sure about equation 1 because theres a 3 after the y and i dont know if that was an error but if it was and its actually meant to read : y=2x+1 then equation 1 &2 are both linear functions.
Solution:
Formula of perimeter = 
So, 2W + 2H = 32.4 ... (1)
Ratio = 5:4
So, 
4W - 5H = 0 ... (2)
Solve equation (1) and (2).
W = 9.0 and H = 7.2
Use the Pythagorean theorem,



D = 11.52
D = 11.5
Hence, the measure of diagonal is 11.5 inches.
Hmm... It's too simple example...
anyway:
The lowest common denominator is 340.
Answer: If you’re talking on a percentage basis, it would be extremely unlikely to get a majority of the questions correct.
Step-by-step explanation: