Select the best answer for the question. 11. Solve the system of equations 2x + 3y = 40 and -2x + 2y = 20. A. X = -10, y = 20 B. X = 2. y = 12 © C. x = -6, y = 4 O D. X = 10, y = 20

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

Which of the following circles have their centers on the x-axis? check all that apply.