130 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below:

Cumulative Frequency

# of times floss per week

0

1

12

Frequency

12

21

13

Relative Frequency

0.0923

0.1615

0.1

0.1385

33

2

46

64

20

0.1538

100

0.1308

117

0.1

130

associative property hopes this ! : )

step-by-step explanation:

45

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m