Evealuate each expression for the given value ,will give brainliest if answered and explained

7: 6 and 2/3

9. 13

Step-by-step explanation:

7 explanation:

you put in -8 for x and then multiply and get 6and 2/3

9. you put 9 and 3/4 in for t and divide it making 13

answer: 230 miles ( vote ! )

step-by-step explanation:

180.39 minus 17.99 equals 162.4

then divide 162.4 by .80 to get 230

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