Answer: 
Step-by-step explanation:
You need to used the following formula:

Where "V" is the speed, "d" is the distance and "t" is the time.
In this case you know that Kevin traveled at a constant speed on the highway from Hickory Hills to Chicago in 20 minutes (which is
) and the distance is 17 miles. Then, you can identify that:

Therefore, knowing these values, you can substitute them into the formula. Then, you get:
Answer:
6.25 cm
Step-by-step explanation:

Hope this helps!
Answer:
−1.01
Step-by-step explanation:
Simplify the expression!
Answer:

Step-by-step explanation:
Given that,
Mass of a certain material, m = 71 pounds
Since, 1 ton = 2000 pounds
71 pounds = 0.0355 ton
Volume of the material, V = 2.5 gallons
Since, 1 m³ = 264.172 gallon
2.5 gallon = (2.5/264.172 ) m³
Density,

You would start with 11.93 times .75, which would round to 8.95. Add that to 11.93 times 2, your answer would be 32.81