C m∠AOCm, angle, A, O, C is a straight angle. m ∠ A O B = 8 x + 5 1 ∘ m∠AOB=8x+51 ∘ m, angle, A, O, B, equals, 8, x, plus, 51, degrees m ∠ B O C = 6 x − 2 5 ∘ m∠BOC=6x−25 ∘

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.