Dana went to the mall with her mo . They started shopping at 3:45 pm first they spent 45 minutes in the shoe store. Then they spent 1 hour and 15 minutes shopping for a dress for Dana. Finally, they spent 30 minutes eating dinner at the food court. What time was it when Dana and her mom finished eating dinner?

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).