Evaluate the expression for r = 9. 12 ur =

We are given the following expression
[tex]12+r[/tex]Also, we are given that r = 9
Let us substitute r = 9 into the given expression and solve
[tex]12+r=12+9=21[/tex]Therefore, the result of the given expression is 21
[tex]12+r=21[/tex]