Susannah has a high-yield savings account into which she deposits $120 each month. at the beginning of the year, susannah's account balance is $800. in the equation below, x represents the amount of time, and y represents susannah's account balance. y = $120x + $800 not including interest, what will her account balance be at the end of the year? a. $2,240 b. $2,300 c. $2,000 d. $1,440