4 pens cost 2$ how much does 1 pen cost?

each pen cost 50 cents, or .5 dollars.

Step-by-step explanation:

If the sum of the cost of the pens is 2 dollars and you bought four equally expensive pens then you would:

DIVIDE 2 BY 4, this would give you .5 which represents 50 cents.

0.5 cents each

Step-by-step explanation:

Ok so if 4 pens cost $2,That means every 2 pens cost $1 but every 1 pen cost

0.5 because if you divided 0.5/4 then you will get 2 so that means every 1 pen equals 0.5 cents.

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation:

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)