A school drama club has 40 Members of those students 35% of the members are seventh graders how many drama club members are in seventh grade what is the part

x+y=90

x=30-y=x

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if you understand you will get the answer

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hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !

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)

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