Answer:
the answer is b
Step-by-step explanation:
khan academy
Answer:
B
Step-by-step explanation:
B is the only answer that will ensure she gets graduate students in the sample without getting too few or too many.
I really don't know how toowrk it out on paper, I'm afraid. I just looked at it, and somehow knew that the answers are 7 and 9.
Answer:
120÷1
Step-by-step explanation:
it would be 120 milla secounds
