35% of the tables have 4 chairs at each table. In total, there are
chairs at these tables?

what?

step-by-step explanation:

what do you need with. i love quadrants. can you tell me ?

i can't see the picture : /

they can both be solutions depends on the equation

step-by-step explanation:

what is the equation? ?

- "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."