21/50 is 42 percent of the students. You will have to find 42 percent of 350 to know. 42 percent of 350 is 147.
The second answer is right
Answer:
x = 25.46
Step-by-step explanation:

Square root 270 a^2 b^2
3sq root 30 a^2b^
The answer is 6 4(2)=8 -2 = 6