An after-school costs 2460 kroner a month. The state pays 20% of the amount

a) How much is it?

b) How much does the student have to pay for a stay of 9 months?

a) If the state covers 20% of the cost per month, that means the student has to pay 80%. So the cost per month for the student is:

2460 * 80/100 = 246 * 8 = 1968 kroner

b) The cost for 9 months would be:

1968 * 9 = 17712 kroner