The cost of sending an overnight package from kansas city to miami is $23.50 for a package weighing up to but not including
1 pound, and $3.80 for each additional pound or portion of a pound. a model for the total cost c (in dollars) of sending the
package is c = 23.50 +3.80lx]. x > 0, where x is the weight (in pounds).
what is the meaning of the coefficient 3.80 in the context of the problem?

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

the answer is 18 units because there are 18 small cubes inside the rectangle

hope this and p.s i am also in k12

step-by-step explanation: