Viktor has $250 in his bank account. he withdraws $15 per week. let x represent the number of weeks that he makes withdrawals, and let y represent the amount of money in his account. which equation represents the amount of money in viktor's account after x weeks? y=250x−15 y=15x−250 y=−15x+250 y=−250x+15

C= Y= -15x - 250

Step-by-step explanation: You cant subtract the week from the money viktor takes out ( y=250x-15) I hope this is right and it helps!!

B

Step-by-step explanation:

can you be my friend here's a wlecome card.

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

step-by-step explanation: