Simplify by combining like terms.
25pq + 13pq - 6 - 35pq + 4

3pq-2

Step-by-step explanation:

25pq + 13pq = 38pq

Next

38pq - 35pq = 3pq

so thats ur first like terms combined then you have to do.

-6+4 = -2

So then you have your answer

3pq-2

were 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."