Can someone help me with this one problem

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

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.