A(5, -3), B(2, -7) \\\\

P_{\overline{AB}}(\frac{x_A+x_B}{2},\frac{y_A+y_B}{2}) \\
P_{\overline{AB}}(\frac{7}{2}, -5) \\\\
d(A, B) = \sqrt{(x_A-x_B)^2+(y_A-y_B)^2} \\
d(A, B) = \sqrt{9+16} \\
d(A, B) = \sqrt{25} \\
d(A, B) = 5