Express  each  ratio  as  a  fraction  in  simplest  form
1. 13  oranges  to  26  apples
2. 12  inches  to  3  feet

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20