Which of the following is a geometric sequence?

0, 2, 6, 12, 72, . . .

1/2, 2/3, 3/4, 4/5, 5/6 . .

4, 9, 14, 19, 24, . . .

1, 3, 9, 27, 81, . . .

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

Sweet t saved 20 percent of the total cost of the green-eyed fleas new album let there be fleas on earth. if the regular price is $30 how much did sweet save

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.