Evaluate 12 p divided by q plus 4 left parenthesis r minus 9 right parenthesis for pequals5, qequals6, and requals16. Use a pe
ncil and paper. Choose different values for one variable at a time. Explain the differences you see in the values of the expression. 12 p divided by q plus 4 left parenthesis r minus 9 right parenthesis equals
nothing
