Helpp me please (No Links Or Files For Explanations Or Solutions)

Thank you very much in advance for whom will help and for whom will answer my questions correctly.​​

Step-by-step explanation:

Total charge consists of the cost of the  tarpaulin, which is 15x and lay outing cost of Php 150:

Correct choice is c.

We are interested in the outcome so the brand of PC is not something to concern us.

Excluding the option II, we have one correct choice:

The area based on given dimensions is:

The cost of printing is:

Correct choice is:

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