I'm pretty sure you would have 412.38 (€) because the equation would be $522 × 0.79.
Please let me know what the question is so I can answer for you after you post it and I’m done answering it you’ll know the answer.

÷

is the equation
When dividing fractions, you "flip-flop" and multiply
So what that means is that you flip the second fraction and multiply
So

is now

Now the equation is

×

which equals

Your answer is
7 months because after the 100 dollars u add u 25 7 times to get 275
But u can’t factor this anymore, there’s no like terms , this is the final form