Question

Help ! it may or may not have multiple answers

Answer 1

From the given problem, there are 3 computer labs and each lab has "s" computer stations.

So the total number of computers is :

`3* s=3s`

Mr. Baxter is ordering a new keyboard and a mouse for each computer, since the cost of a keyboard is $13.50 and the cost of a mouse is $6.50.

Each computer has 1 keyboard and 1 mouse, so the total cost needed for 1 computer is :

`\$13.50+\$6.50`

Since you now have the cost for 1 computer, multiply this to the total number of computers which is 3s to get the total cost needed by Mr. Brax :

`3s*(13.50+6.50)`

Using distributive property :

`a(b+c)=(ab+ac)`

Distribute s inside the parenthesis :

`3(13.50s+6.50s)`

One answer is 1st Option 3(13.50s + 6.50s)

Simplifying the expression further :

`\begin{gathered} 3(13.50s+6.50s) \\ =3(20.00s) \end{gathered}`

Another answer is 4th Option 3(20.00s)