You use 18 cups of detergent for every 14 gallons of water. Which of the following equations can be used to calculate c, the number of cups of detergent needed when using 17 gallons of water?

21.9

Step-by-step explanation:

detergent:water

18:14

divide by 2

9:7

divied by 7

9/7:1

times 17

21.9(roundeed to the nearest tenth)

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