Aaron bought a stereo system for $55 and spends $8.45 on parts. He sells the system for $60. What is his profit/loss?

$3.45 loss

Step-by-step explanation:

his loss is $3.45

Step-by-step explanation:

you just add then subtract

i am sorry it just submitted an answer but the answer is 365 boys. hopes this

step-by-step explanation:

- "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."