Which of the following is a true

a. -9< -4

b. |-10| > | 2 |

c. | -3 | < | 2 |

d.6< - 12

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

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 .