Kacey was draining a pool that was 12 feet deep. she started draining the pool at 7am. by 9am, the water level was 8 feet. write an equation for the depth of the pool in relation to the time since 7am. use x for the independent variable and y for the dependent variable. write your answer in slope-intercept form. do not use spaces in your answer.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

3+x

step-by-step explanation: