Sandra visited Poland for a holiday,
She exchanged 450 euros to Polish zloty (PLN) at a rate of 4.48 PLN per euro. How many zlotys should she receive at this rate of exchange?

And the b part of this question is
On her return Sandra had 545 PLN left over, which she wanted to exchange back to euro. She received 118 euros. How many zlotys did the bank exchange for each euro on the day? Give your answer correct to four decimal places.

Would greatly appreciate some help