What is the mean for these set of numbers 8,14,6,12,12 and 20

Mean: Average of numbers in a data set.

Step 1. Add the numbers up. In this case, we would add

8 + 14 + 6 + 12 + 12 + 20 = 72

Step 2. Divide the sum by the number of digits you added. We would divide

72 "sum of numbers" by 6 "number of digits" and our answer would be 12.

The mean for this set of numbers is 12.

$12. that is my answer.

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.