What is the average cost of 7 articles if 3 of them cost 30k each and the rest cost 12.5k each ​

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

Which number line represents the solution set for the inequality - x 24?

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?