Does anybody know how to fill in all the boxes?

Step-by-step explanation:

# angle ABC is congruent to angle DEF which’s given

# angle GHI is congruent to DEF which’s given

#angle DEF is congruent to DEF / symmetric property

# angle ABC is congruent to GHI / transitive property

(ABC+DEF=DEF+GHI)

- SUBTRACT DEF from both sides

ABC=GHI

- "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."

it is x equals 3   plese mark me really need it

step-by-step explanation: