Do 4+3+5 which = 12
then do 48 divided by 12 which is 4
Now 4 x 4 = 16
3 x 4 = 12
5 x 4 = 20
16 + 12 + 20 = 48 so its divided as 16:12:20
This is the difference of two perfect cubes.
(6y-4)(36y^2+24y+16)
Mean = 29
Q1 = 19
Q2 = 26
Q3 = 38
IQR = Q3 - Q1 = 38 - 19 = 19
180, because 9 and 20 don’t have any common multiple (both numbers couldn’t be simplified)