Write inequalities to represent the situations below. The vehicle's fuel efficiency is at least 40 miles per gallon.
Use f to represent the vehicle's fuel efficiency (in miles per gallon).
The temperature inside the lab refrigerator is no more than 45 °F.
Use t to represent the temperature (in °F) of the refrigerator.

cosine

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."

total of apples - take away four

6-4 = 2

answer is 2 apples