Tyree says that he cannot simplify 3n + 4 anymore than it is already simplified. Why is that? A
3n and 4 do not have the same coefficient.

B
3n and 4 are not like terms.

C
He is incorrect; they can be simplified.

D They do not have the same exponent.

here is the

mark brainliest pl

- "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."