Jason sold half of his comic books and then bought six more. he now has seventeen. how many did he begin with?

Step-by-step explanation:  he had 5 comic books because he now has seventeen - six = 11 and half of 11 is 5.5 rounding = 6

22

Step-by-step explanation:

Let x be the number of comic books he had originally.  To represent the situation, we would write  x/2 + 6 = 17.  Solving this gives us x = 22.

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct