Correct. The system that models this situation is $\displaystyle{x}+{y}\ge{10}\usepackage{cmbright}\Huge\$ and $\displaystyle{2}{x}+{5}{y}\le{60}\usepackage{cmbright}\Huge\$ . The graph is shown below. Starting at 14 on the x-axis, move up through the region. The highest point for which y is a whole number is (14, 6). This is shown. So Tonya can buy at most 6 of the 8 in. x 10 in. photos.