Alibrarian recorded the number of books that were checked out on each of the last 9 days, as shown below. 142, 136, 125, 148, 150, 152, 115, 131, 136 what is the mean of the data set? a 137.22 b 1, 235 c none of these d 9

Mean is the sum of values divided by the count of values.

The sum of values is 1,235.

There are 9 values.

1235/9 = 137.22

choice b is correct

step-by-step explanation:

we have been given the following system of linear inequalities;

we are required to graphically determine the solution to these system of inequalities. using a graphing tool, the solution is as shown in the attachment below;