Which ordered pair is a solution to the following system of inequalities?

A. (-3,2)
B. (6,4)
C. (-1, -7)
D. (5,-2)

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?

In the diagram of circle o, what is the measure of zabc?