Please help , Find x and y

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

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.