A robot can complete 7 tasks in 2/5 hour. Each task takes the same amount of time. a. How long does it take the robot to complete one task?
b. How many tasks can the robot complete in one hour?

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

the first dot plot best represents the data

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step-by-step explanation:

if u want da anser kill your teeser ifu hav wun

3, 12, 48, 384, 1536, 6144, 24576, 98304

step-by-step explanation:

just keep timing it by 4.