Find the value of each variable.
a) x=38,y=76
b) x=52,y=76
c) x=38,y=104
d) x=52,y=104

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3