Cora started her math homework at 3:39 P. M. She finished all the problems at 4:12 P. M. How long did Cora spend doing her math homework?

Which is the graph of the function y=2(4)^x

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

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation