Since y=75 and x=1/2 you would need to find the value of y if x is 2 1/4
1/2 +1/2 = 1 75 + 75 = 150
2 wholes = 300
Now you nee to find what 1/4 is
75 divided by 2 is 37.5 so 1/4 is 37.5
300 + 37.5 = 337.5
The answer would be B 337.5
Hope this helps :3