In choosing what music to play at a charity fund raising event, Davon needs to have an equal number of string quartets from Mendelssohn, Schubert, and Rubinstein. If he is setting up a schedule of the 6 string quartets to be played, and he has 6 Mendelssohn, 15 Schubert, and 10 Rubinstein string quartets from which to choose, how many different schedules are possible

- "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."

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.