For the each of them simply substitute for x in each equation to see if you get the corresponding y , it doesnt really get any more straightforward than this
8 because 25% is 1/4 of how much he has so just multiply 2 by 4
Answer:
I dont understand your question rither
Step-by-step explanation:
sorry I would help is I neew
Answer:

Step-by-step explanation:
We can find the inverse function of this excercise, isolating X and then changing the variables.


And now we change the variables and we get the inverse function:

In euros Derek has twenty two dollars and eighty cents