What is 7 over 10 as a decimal

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle