Gavin and Jim win some money and share it in the ratio 4:5. Gavin gets £20. How much did they win in total?

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

Icould really use some with this question.

What are two numbers that have a sum of 15