What is the midpoint between (-8,-5)and (-2,2)

A (-5,-3.5)
B (-5,-1.5)
C (-10,-3)
D (-3,-3.5)

1. the following set of data represents the number of waiting times in minutes from a random sample of 30 customers waiting for service at a department store. 4 5 7 10 11 11 12 12 13 15 15 17 17 17 17 17 18 20 20 21 22 22 23 24 25 27 27 31 31 32 a. determine the number of classes and class interval.

What is the lcm of 16 and 40 ? 24 and 40 ?

Which expression is the factorization of x^2+10+21