Please help! I will give Brainliest!

C. 35/256

Step-by-step explanation:

probability = favorable outcomes/total outcomes

there are 16 marble total, 5 green ones, 7 blue ones, and 4 red ones.

7/16x5/16=13.21%

35/256=13.21%

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:

answer: what do you mean