^Challenge^. A cell phone plan costs $27.70 per month for 800 minutes of talk time. It costs an
additional $0.05 per minute for each minute over 800 minutes. To get e-mail access, it costs 10% 0
the price for 800 minutes of talk time. Your bill, which includes e-mail, is the same each month for 7
months. The total cost for all 7 months is $234.29. Write and solve an equation to find the number
minutes of talk time you use each month.

Let m represent the number of minutes over 800 minutes each month. Which equation represents the given
situation?

A 234.29 = 7(m + 27.70)
B. 234.29 = 7(0.05m +27.70+ 0.10(27.70))
C. 234.29 = 7(m + 27.70 +0.90(27.70))
D. 234.29 = 7(0.05m +27.70)
You use _? minutes of talk time each month.?

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅