Incorrect. Try using the following system of equations to solve this problem:

$\displaystyle{3}{c}+{4}{m}={24.25}\usepackage{cmbright}\Huge\$

$\displaystyle{6}{c}+{5}{m}={36.50}\usepackage{cmbright}\Huge\$

How can you use the elimination method here to solve for m, the price of one meatball sub?