Steve earned a 96% on his first math test, a 74% on his second test, and a 85% on his third test. what is his test average?

The test average is 85%.

1st test = 96%

2nd test = 74%

3rd test = 85%

The average of the test will be gotten by adding the tests and dividing it by 3. This will be:

Average of the test = (96% + 74% + 85%)/3

= 255%/3

= 85%

Therefore, the test average is 85%

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The average is 85%

Step-by-step explanation:

To find the average, we add up all the numbers.  Then we divide by the number of numbers

Average = (96+74+85) / 3

                 = 255/3

                 =85

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: