Which of the following is an expanded form of the expression below?

key: ^2 means to the 2nd power

-5 (a^2 - a + 6)

a. 10a - 30

b. -10a - 30

c. -5a^2 - 5a + 30

d. 5a^2 + 5a - 30

10000

step-by-step explanation: divide by 2,

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.