There are 90 kids in a band 20% of the kids on their own instruments and the rest of them rent them.

Step-by-step explanation:

what's the question though ?

72 rent instruments 18 own them

Step-by-step explanation:

20 percent is the equivalent of saying 1/5

1/5

Divide 90 by 5

Which is 18

18 is 1/5 of 90

18 students own their instruments

To find the rest we subtract 90-18

which is equal to 72

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17