Two communications companies offer calling plans. With Company X it costs 35 cents to connect and then 5 cents for each minute. With Company Y it costs 15 cents to connect and then 4 cent for each minute. which of these expression represents how much more company x charges than company y
A. (35 + 4n) - (15 + 5n)
B. 35n - 5 - 15n -4
C. (35n - 4) - (15n - 5)
D. (35 + 5n) - (15 + 4n)

Find percent notation for 0.008 0.008=

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18