in this problem, it gives us the function. Deal Vics is equal to 0.8881 x as a way to cover euros to us dollars with Ex being your Euros, Andy of X, equally your U S. Dollars. So this question and wants to know what was the value of euros of $500. So if D of X equals 500 you wouldn't know what is X. So we plug in 502 d of X equals 0.8881 x we divide off 0.8881 On both sides, these will cancel out and expense of equaling $562 in 99 cents.