How many plants does he put in the garden on #9

Asequence of numbers begins with 12 and progresses geometrically. each number is the previous number divided by 2. which value can be used as the common ratio in an explicit formula that represents the sequence? 1/2 2 6 12

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)