I got you. it is B i believe <span />
Answer:
89.51%
Step-by-step explanation:
Assuming given units are in cm
Tge rate of filling the cup is 70/2= 35 cm3/s
Volume of the cup is
and replacing r with 4 cm and h with 7 cm then the volume is equivalent to

Volume filled after 3 seconds will be 3*35=105 cm3
Percentage filled is 
Answer:
The best estimate of the probability of getting a green marble from this bag of 50 marbles is 1/3.
Step-by-step explanation:
Andre gets 1 green marble out of 4 trials.
For Andre, the probability of getting 1 green marble is 1/4.
Jada gets 5 green marbles out of 12 trials.
For Jada, the probability of getting 1 green marble is 5/12.
Noah gets 3 green marbles out of 9 trials.
For Noah, the probability of getting 1 green marble is 3/9.
Hence, the best estimate of the probability of getting a green marble from this bag = (1/4 + 5/12 + 3/9)/3 = [(9 + 15 + 12)/36]/3 = 1/3.
350 + 0.029(5600) = 350 + 162.40 = 512.40 <==