Which expression represent the phrase 9 times the sum of B and two

18

step-by-step explanation:

ik this stuph and i am smart donkey

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

- "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."

dont trust me im no expert these losers made me fail a test bro this sucks

step-by-step explanation: