Solve the problem.The orbit of a planet around a sun is an ellipse with the sun at one focus. The aphelion of a planet is its greatest distance from the sun, its perihelion is its shortest distance, and its mean distance is the length of the semimajor axis of the elliptical orbit. If a planet has a perihelion of 302.5 million miles and a mean distance of 305 million miles, write an equation for the orbit of the planet around the sun.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
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Write a sentence containing scientific notation for the answer.A company has 7 × 103 employees. In 2009, the company paid each employee 
per year. Multiply those two numbers to find the total amount the company paid in salaries.
A. The company paid $1.75 × 109 in salaries. B. The company paid $17.5 × 108 in salaries. C. The company paid $1.75 × 108 in salaries. D. The company paid $17.5 × 109 in salaries.
Provide an appropriate response.Perform the indicated operation. Write answer with positive exponents: 
3
What will be an ideal response?
Determine whether the graph is the graph of a function.
A. Yes B. No
Arrange the polynomial in descending order.10 - 7x2 + 6x6 + 3x3 + 2x
A. 10 - 7x2 + 6x6 + 3x3 + 2x B. 6x6 + 2x + 3x3- 7x2 + 10 C. 10 + 2x - 7x2 + 3x3 + 6x6 D. 6x6 + 3x3 - 7x2 + 2x + 10