Translate the sentence to an equation using the variable x. Then solve the equation.The sum of a number and 5 is 18.
A. 5x = 18; 
B. x + 18 = 5; -13
C. x = 5 + 18; 23
D. x + 5 = 18; 13
Answer: D
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Find the sum.
A. 
B. 
C. 
D. Does not exist
Solve the problem.The weight of a person on or above the surface of the earth varies inversely as the square of the distance the person is from the center of the earth. If a person weighs 180 pounds on the surface of the earth and the radius of the earth is 3900 miles, what will the person weigh if he or she is 450 miles above the earth's surface? Round your answer to the nearest tenth of a pound.
A. 145.08 lb B. 144.18 lb C. 144.68 lb D. 146.08 lb
Multiply the polynomials. Express the answer as a single polynomial in standard form.(x + 10)2
A. x2 + 100 B. x + 100 C. 100x2 + 20x + 100 D. x2 + 20x + 100
Use the ZERO or the INTERSECT feature on your calculator to approximate all the zeros of the function to three decimal places.f(x) = 
- 3
+ 5
A. -1, 3 B. 1, 8 C. 0.75, 7.5 D. 0, 7.5