Hello,
if 2x²=54 then (2x)²=4x²=2*2x=2*54=108
I think is 50.24 (tell me after if it was right)

let's plug in the value of y :
Answer:
should be 43
Step-by-step explanation:
because it goes up by 2 every time
I'm not sure that I am 100% right but I'll give it a shot.
50+75= 125*0.35=43.75
$43.75