C)
if tina talks 500 minutes in one month, she will
pay $100.
true / false
evidence:
d). the plan includes up to 300 minutes at no additional
charge.
true / false
evidence:

e)the plan charges the same amount for 600 minutes as
for 500 minutes.
true or false
evidence
f)the plan charges twice as much for 600 minutes as for
300 minutes.
true / false
evidence:

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

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