The range of the relation is 35,40,45,60,75
Reason being in relation range is the set of all second elements of ordered pairs (y-coordinates).
Number of quartz implies how much quartz you want .It can be 2 , 3 a hundred, a thousand..(Quantitative).
the price per quart is the price of a single quartz that is only for 1 piece (only)
Answer: D
A is just a survey (yes or no answers), B is more of a factual question (not concerning a set or population), and C is the same as B
Damiel sold 12 more cds on the 7th day than the average over the first 6 days. to show work find the mean(average) of the 6 numbers. and subyract that from 25.