20×3 is 60 and if Sarah counted 45 beats in 20 seconds you'd multiply 45 by 3 so it would be 135.
(2000 cups) / (96000 bees) = (1 cup)/(48 bees) = 0.0208... cup per bee.
(about 0.17 fl ounce)
4/9 (4 out of 9) because you add them all together then count the number of blue marbles then since you put back the first marble, the dominator is still the same
False if it is congruent it should be written in order
2n(n + 3) - 5(n + 3) = (2n-5)(n+3)
A. (n + 3) (2n - 5)