At 2: 30 a. m. the temperature in pittsburgh, pennsylvania is 3°f. the temperature drops 34 of a degree in 30 minutes. what is the temperature in pittsburgh at 3: 00 a. m.?

a
2.2¯°f

b
2.25°f

c
3.75°f

d
3.7¯°f

The students in a class were asked how many siblings they have. the data obtained is represented in the dot plot. the number of students who have no siblings is . the number of students who have three or more siblings is .