The spinner shown below will be used to play a game. If the pointer on the spinner is spun 120 times, how many times would you expect the pointer to stop on a color other than red?

90?

Step-by-step explanation:

im assuming it is a 4 color spinner, so I think it would be about 90 times

b) 36

step-by-step explanation:

18 times 2 is 36

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0