In a secondary school there are 40 classes all together. 8 of the classes are year 7 classes. what fractions of the classes in school are year 7?
give your answer in the simplest form

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

what i would say the best answer is a. 40.5

49%

step-by-step explanation:

when you realize that you dont know just realize i just took a test and im so smart

explanation:

step-by-step explanation: