Please help me

What is the following table called?

Ages Number of Ages

20 up to 30 16

30 up to 40 25

40 up to 50 51

50 up to 60 80

60 up to 70 20

70 up to 80 8

A. Histogram B) Frequency polygon C) Cumulative frequency distribution D) Frequency table E) None of the above

Ican interpret and represent the remainder in division calculations sensibly for the context (eg if we wont to know how many 40 seat buses will be needed to transport 170 students for on excursion, we divide 170 by 40 and realise buses and another smaller vehicle to that we need 4 transport 10 more students) solve the following questions. show your work! 11) the zoo had 420 butterflies that needed to be transported to a new enclosure. the boxes that the butterflies would be moved in only hold 80 butterflies in each. how many boxes would they need? 2 12) each classroom in the school can have exactly 25 students, if there are 345 students in the school how many full classrooms are there?