State the domain of the following relation and state if it is a function. (2, 4), (8, 6), (5, 5), (2, 7), (4, 5) a. {2, 4, 5, 8}; yes b. {4, 5, 6, 7}; yes c. {2, 4, 5, 8}; no d. {4, 5, 6, 7}; no

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000