1euro = 1.3687 USD
So 150 Euros = 150*1.3687 USD
=<span>205.305 USD
So he spent $205.305 USD on his trip.
He started off with $250 so to find the amount left we just take
250 - 205.305
= $44.695
Or 44 dollars and 69.5 cents. It's a weirdly exact amount, sure, but the question had a very precise exchange rate, so we'll assume this is fine. </span>
Hello,
Shall we begin?
10.80
+ 4.73
-----------
15.53
<span>Answers: 15.53</span>
Step-by-step explanation:

Answer:
Coefficient
Step-by-step explanation:
-Usually a combination of variables and constants are multiplied to get a product.
-The constant or number part in the multiplication process is called the Coefficient
I'm not good at math but I think is 3f because you'll be multiplying f(unknown #) by 3 so f(x) would be 3f