Question

Lainey bought a set of 20 markers for $6. What is the cost for 1 marker ?

Answer 1

You need to find the cost of one marker. You just simply have to divide the money by the number of markers.
$6 \div 20 = m$
$m = 0.3$
Now to actually make it apply to the problem, you have to make sure there is a zero in the hundredths place.
So it will look like this:
$m=0.30$

Answer 2

you would do ...

20 ÷ 6

= $3.33