Q3. If a=b c, b= c a and c = a b then prove that abc=1. Q4. If a= 5x, b= 5y and ay bx = 25, then prove that xy = 1

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8

What’s -11-33k and factor each expression completely