7m^2 + 6.5n - 4n + 2.5m^2 - n a. 9.5m^2 + 1.5n b. 4.5m^2 + 1.5n c. 1.5m^2 - 4.2n d. 9.5m^2 - 1.5n simplify the following expression. 1/3(21m + 27) a. 7m + 27 b. 7m + 9 c. 63m + 9 d. 7m + 81 what is the sum? 7/4 + (-1/5) a. 31/20 b. 39/20 c. 6/9 d. -7/20

what is the passage

the word that best matches the meaning of the expression "went to the big ocean" is died.

the goldfish died, which is why the father looks at the children mournfully. the "big ocean" is the father's way of saying fish heaven. he could have just said that the goldfish died, but this way, the children imagine the fish in a bigger, better place instead of just picturing a dead fish.

explanation:

at hatfield elementary school, there are 504 students in 7 classes. each class has the same number of students. what is a good estimate of the number of students in each class?