Two linear functions in a coordinate plane have no points of intersection. Which pair of functions does not intersect?
A 6 + 2 = 12 and 20 + 10 = 14
B 4 + 2 = 12 and 20 + 10 = 30
C 6 + 2 = 12 and = 0.5 − 0.6
D 10 + 10 = 6 and = 0.5 − 0.6

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?

Which number produces a rationale number when multiplied by 1/5