What is a recursive rule for 3, 27, 243, 2187, 19683? plz help T6T

Which value is not a solution of 8x^3 – 1 = 0

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Which of the following expressions cannot be simplified to x – 2?