compare this plx help me soon

Answer:
A<B
Step-by-step explanation:
Of means multiply and is means equals
40% of A = 300
.40 A = 300
Divide by .40
.40A/.40 =300/.40
A = 750
.30% *B = 400
.30B = 400
Divide by .3
.3B/.3 = 400/.3
B = 1333.33333
A<B