In the expression 2x + 3, variable is , Coefficient is, and constant is

x, 2, 3

Step-by-step explanation:

The variable is x.

The coefficient(the number multiplied with the variable) is 2

Th constant(the term with no modifiable variables) is 3.

- "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."

∠cbe and ∠deb are same-side interior angles.

i took the test