Card store A sells 16 cards for 96$. What is the cost in dollars per card?

16=96

1=?(x)

16x=96×1

x=96/16

x=$6

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

median- 36f

mode - none

mean- 33.7 ~ 34f