Credit cards and charge cards differ in two important ways. one is the method of payment. what is the other difference?
a. you can get a credit card from your bank but not a charge card.
b. you have to pay interest on charge cards but not on credit cards.
c. you have to pay interest on credit cards but not on charge cards.

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

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step-by-step explanation:

i wish i could u