Question

If the mean of a set of 12 number is 13, then the sum of the numbers is:

Answer 1

The first image is the answer and the second image is the explanation.

Explanation:

Answer 2

Answer: 156

to find the mean of a number, you would have to add all the numbers and then divide by how many numbers there are.

so here, i just multiplied 13x12 because 12 is how many numbers are and 13 is the final solution.