Can somebody answer this pls?

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers