The solution to -2x/3+7<15 is the set

What can you determine about the solutions of this system

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

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