Someone help me please, i’m desperate

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field