Which equations are true? Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
0=(-x) + x0=(−x)+x0, equals, left parenthesis, minus, x, right parenthesis, plus, x

(Choice B)
B
0=x + x0=x+x0, equals, x, plus, x

(Choice C)
C
None of the above

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a