$3 a day on coffee and $120/month on gas the first set of expenses is what % of the second

The first set of expenses is 75% of the second assuming we are in a 30-day month.

Step-by-step explanation:

To find this, we first have to find out how much we spend a month in coffee. To do so, we multiply the daily cost by number of days in a month (we'll use 30 for this case).

$3 * 30 days = $90 a month.

Now to find the percentage, we divide what we spend in coffee by what we spend on gas.

$90/$120 = 75%

step-by-step explanation:

yes

- "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."