Given m∠14+m∠3=180° . Which lines are parallel, if any must be parallel, based on the given information?

a∥b by the converse of the alternate interior angles theorem.
c∥d by the converse of the corresponding angles theorem.
a∥b by the converse of the same-side interior angles theorem.
Not enough information to make a conclusion.

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

We just started the introduction into circles and i have no idea how to do this.

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq