The prices of 15 baseball cards are listed below $1, $8, $1, $2, $2, $3, $12, $10, $5, $8, $6, $7, $7, $2, $10 how much greater, in dollars, is the median price than the mode of the prices listed? a. $5 b. $8 c. $4 d. $9

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.