Suppose that this person drives at r mph going to the mountains, and gets there in 12 hours. Returning, this person drives at (r+20) mph and gets home in 8 hours. We don't know the distance yet, but can solve for the initial speed, r, by setting
d = 12r = (r+20)(8). Solving for r, r=40 mph (going) and (40+20)mph = 60 mph (returning. Since d=12 r, d = (12 hrs)(40 mph) = 480 miles (answer).
178.90x.24=42.94<---- sales tax
Answer:its easy
Step-by-step just do 2 rows of 5
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Hello!</h2>
The answer is:
The area is equal to 113.04 units.
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Why?</h2>
To find the area of the circle, we need to use the given information about the radius (6).
So, the area of a circle is given by the following formula:

Where,

Substituting the given radius, we have:

Have a nice day!