Answer:
<em>Regan sold </em>
<em> gallons of lemonade</em>
Step-by-step explanation:
<u>Operations with Fractions</u>
Mark sold
gallons of lemonade.
Regan sold
as much lemonade as Mark
We can find the portion of lemonade Regan sold by multiplying both fractions. But first, we must convert to improper fraction:

Now we multiply:

Regan sold
gallons of lemonade
The answer is choice A
The line is RS because R and S are on the line.
The plane is RSU because we need at least 3 non-collinear points to form a plane. In this case, point U is not on line RS.
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Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out