Answer:
30
Step-by-step explanation:
21 + 9 = 30
The answer is x=20. You isolate the square root. Eliminate the radical on the left handside. And then solve it!
Answer:
C, 33 1/3%
Step-by-step explanation:
Because there are only two even number that follow this rule: 2<x≥6, and since there are only 6 possible outcomes, the probabilty is 2/6, which is 1/3. In a percent form, this is 100%*2/3, or 33 1/3%.