1. what are the coordinates of the circumcenter of a triangle with vertices a(0,1), b(2, 1) , and c(2, 5) ? 2. what are the coordinates of the centroid of a triangle with vertices a(−6, 0) , b(−4, 4) , and c(0, 2) ?

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%