Mean = sum/N
7 = 42/N
N = 42/7 . . . . . multiply by N/7
N = 6
There are 6 scores in the population
If you mean this:

then x = 0. The property in play here is the following: Any number raised to the "0" power is equal to "1". In this case, we would need to set the exponent of 3x = 0 and solve for x...
If you mean the equation:

then to solve for x(your blank), simply divide both sides of the equation by

:
You would have x =

this can also be written as
If l || m than 8x+20=11x-31
3x=51
x=17
The angles are obtuse angles.
Answer:
The solution of a number divides by 8 equals to 4.
Step-by-step explanation:
This statement does not match with the condition discussed above.
Step-by-step explanation:
Pls mark brainliest
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