Joakim borrows 50,000 from his
bank, the interest
rate is 6.5% after six
months, joakim
repays the loan and
interest to the bank.
how much does he
pay in total

assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation:

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