Quadrilateral OPQR is inscribed in circle N, as shown below. Which of the following could be used to calculate the measure of ∠ROP?

A:(6x − 4)° + (2x + 16)° = 360°
B: (x + 16)° + (6x − 4)° = 360°
C: (6x − 4)° + (2x + 16)° = 180°
D: (x + 16)° + (6x − 4)° = 180°

Which graph shows a function with a range of all real numbers greater than or equal to -1

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Which statements regarding efg are true? check all that apply.