What is the product of 2/10 and 4/9?

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

How to solve a simultaneous equation involved with fractions?