Charmaine bought a desktop computer and a laptop computer. Before finance charges, the labtop cost $450 less than the desktop. She paid for the computers using two different financing plans. For the desktop the interest rate was 7% per year, and for the labtop it was 5.5% per year. The total finance charges for one year were $279. How much did each computer cost before finance charges?​

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

d) 48

step-by-step explanation:

16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256,272,288,304,320,336

what graph

step-by-step explanation:

70 years.

step-by-step explanation: