7.2
1) To find out the distance between them, we'll make use of the distance formula (derived from the Pythagorean Theorem)
[tex]d_{}=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
2) Plugging into that the given points (7, 8) and (3, 2):
[tex]\begin{gathered} d_{}=\sqrt[]{(x_2-x_1)^2+(y_2-y_1)^2} \\ d_{}=\sqrt[]{(3-7)^2+(2-8)^2} \\ d=2\sqrt[]{13}\approx7.2 \end{gathered}[/tex]
Note that we've rounded off to the nearest tenth
3) Hence, the answer is 7.2
