Answer:
I think it is D because you dont know whether there are other clubs in the whole school making the investigation incorrect.The investigation would be correct if his study was about how many students there are in drama class.Hope I helped :)
Equations -
I like to find the decimal expression of the fractions, to make this easier.

Divide each sides by 0.6

Answer: 6/7
Answer: x=0.142
2x +3 (5-3x) = 7(5-3)
2x+15-9x=35-21
-7x=14-15
x=-1/-7
x=0.142
Brainliest pls if it is correct!
1/10, because she plays in 10 games out of 100
When you simplify the following equation (8x^2-32)/(8x+16)
The answer is: x-2