Which expression best estimates 63 +1 ? O 7-2 O 6=1 8-3 o 3-2

The answer would be A

Step-by-step explanation:

So basically u have to round up so 6 3/4 is about 7 and 1 2/3 is about 2 so thus the answer is A. or 7 divided by 2

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