Diameter is 2r, or 18.8 ft
Circumference is 2*pi*r, or 59.1 ft
Rates are used to measure a quantity over another.
<em>The 1.8 million cars use </em>
<em> liters each year</em>
Given

--- distance

First, we calculate the number (n) of gallons used by each car

Solve for n

So, we have:


Convert miles to kilometers



The number of gallons (N), used by all the cars is:


Convert to liters


In scientific notation to 2 decimal places, we have:

<em>Hence, the number of liters used is </em>
<em />
Read more about distance and rates at:
brainly.com/question/24659604
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He went upstream 3 hours and downstream two. 4x3=12 6x2=12
He went 24 miles.
Answer:
<h2>A. 2x² + 5x + 1</h2>
Step-by-step explanation:
