5.3 repeating is the answer
Answer:
B. -1
Step-by-step explanation:
examples:
1 and -1
1/2 and -2
Answer:
C) 
Step-by-step explanation:

Answer:
102 students
Step-by-step explanation:
Note that 65% and 71% are both 1 standard deviation from the mean (71%). According to the empirical rule, 68% of scores lie within 1 std. dev. of the mean.
68% of 150 students would be 0.68(150 students) = 102 students