It would be 22 x 3.14 = 69.08 i’m pretty sure lolol sorry if i’m wrong
They are all averages
mean=average 4+6=10, 10 divded by 2= 5, the mean is 5
median= middle number, 5 6 7, 6 is the median
mode= most repeated number, so 4,4,4,4,4,4,4,5.5,6 4 is the mode
Assuming a "piece of fabric" is a yard, 5x5 is $25.00.