Evaluate (y - 9) + (3 + x), when y = 15 and x = 5

Which of the following is the result of expanding

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000