There are 8 rock, 4 classical, 12 hip hop, and 6 country CDs in a storage box Today you grab a CD, play it and you leave it out of the box. Tomorrow you do the same thing. What is the probability that you will choose a hip hop CD on both days?

john earns $14.00 for two hours of work.

yes

step-by-step explanation:

95.03 is the answer. hope this !

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places