Susie wants to take her friend out for lunch. she wants to spend $9.75 each person. how much will she spend in all.

Susie wants to take her friend out for lunch.She wants to spend $9.75 each person. How much will she spend in all.

19.5

Step-by-step explanation:

Just add 9.75 +9.75 once.

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

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol