Evan owns a house cleaning service. for each house visit, he charges $55 plus $30 per hour of work. a linear equation that expresses the total amount of money evan earns per visit is y 55 +30x what are the independent and dependent variables? what is the y-intercept and the slope? a. the independent variable (x) the amount, in dollars, evan earns for each session. the dependent variable () is the amount of time evan works each house visit. at the start of the repairs, evan charges a one-time fee of $55 (this is when x= 0), so the y-intercept is 55. evan earns $30 for each hour he works, so the slope is 30. b. the independent variable (x) is the amount of time evan works each house visit. the dependent variable (y) is the amount, in dollars, evan earns for each session. at the start of the repairs, evan charges a one-time fee of $55 (this is when x=0), so the y-intercept is 55. evan earns $30 for each hour he works, so the slope is 30. c. the independent variable (x) the amount, in dollars, evan earns for each session. the dependent variable (y) is the amount of time evan works each house visit at the start of the repairs, evan charges a one-time fee of $30 (this is when x earns $55 for each hour he works, so the slope is 55 0), so the y-intercept is 30. evan d. the independent variable (x) is the amount of time evan works each house visit. the dependent variable (y) is the amount, in dollars, evan earns for each session. at the start of the repairs, evan charges a one-time fee of $30 (this is when x 0), so the y-intercept is 30. evan earns $55 for each hour he works, so the slope is 55