5. Find the coordinates of the midpoint of the segment whose endpoints are 1l(6, 4) and K(2. 8).
A. (4,4)
B. (2, 2)
C. (8, 12) D. (4.6)

6. Find the distance between points P(8, 2) and 2(3, 8) to the nearest tenth.
A II
B. 7.8
C. 61
D. 14.9
I forgot how to do these also please explain!

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?