The distance formula is:
(x1, y1) = (6, 16) meaning x1 = 6 and y1 = 16
(x2, y2) = (-1, 14) meaning x2 = -1 and y2 = 14
So, plugging those values into the distance formula:
d = √((-1 - 6)2 + (14 - 16)2)
d = √(-7)2 + (-2)2)
d = √(49 + 4)
d = √53
Using your calculator and rounding to the nearest tenth, d = 7.3