Answer:
y=17/2 and x=15/8
Step-by-step explanation:
By subsitution, we get 4x+4x+1=16, so 8x=15. Thus, x=15/8. Next, we plug x in to find y. y=4*15/8 +1, or 15/2 +1 = 17/2
Answer:
15
Step-by-step explanation:

Answer is B
Find perimeter then divide by 3 (because price is per 3 meters) then times by 500 to get the answer
CD = XY = 26 mm
hope that helps