Mr. mccoy has owned an antique car for 6 years. during that time the car's value has grown from $20,000 to $30,000. by about what % has the car's value grown each year that mr. mccoy has owned it? a) 4% b) 5% c) 6% d) 7%

How to solve it and what thw answer is

Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]