M = Undefined (because the line is perfectly vertical)
Answer:

Step-by-step explanation:
The formula to find the area of a circle is

We know that

Therefore the area is

Distance=speed times time
distance=30mi
speed=15mph
t=t
so
30=15 times t
divide both sides by 15
2=t
2 hours

solve for "w" to get the width
what's the area of a rectangle? length * width, or lw
Answer:

Step-by-step explanation:
x - the temperature
y - the number of people
the temperature is between 75 degrees and 110 degrees:
75 < x < 110
the room for 50 people:
0 < y ≤ 50