Abike shop sells only skateboards and bicycles. all skateboards have 4 wheels and all bikes have 2 wheels each. there are 20 vehicles with a total of 52 wheels in the shop. how many skateboards and how many bikes were in the shop?

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

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.