Please help me, Ive been on this for almost half an hour ;( which explicit formula describes the sequence −9, −3, 3, 9, 15, …?

Group of answer choices

an = 9n + 6

an = 6n + 15

an = 6n - 15

an = 9n – 6

it's 9n + 6

Step by step :

-9 + 6 = -3

-3 +6 = 3

3 + 6 = 9

9 + 6 = 15

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation:

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or