Which scenarios represent a proportional relationship? Question 3 options:

Berkley runs a concession stand at a local pool. He charges $3.00 for cheeseburgers

Meagan works at CVS. She makes $11.75 an hour

Mr. Collins is going to order a satellite dish from Direct TV so he can watch a local weather station to see if the school will be canceled. Mr. Roberts comes to install the dish and charges $40.00 an hour for his labor and Direct TV charges a $20.00 fee

Gandalf switches from Verizon to Sprint. Sprint charges $85.00 a month for phone service

The Green Valley Book Fair has a special section where each book costs $3.00

this is false ^.^ lol

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."