Lời Giải
Lời Giải
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twice a number minus 4 is less than three times the numberThe present of Abdul ’s father is three times the present age of Abdul. After six years sum of their ages will be 69 years. Find their present ages.The Anderson's took out a loan for 195,000 to purchase a home. At 4.3% interest rate compounded annually, how much will they have paid after 30 years?How much should be invested now at an interest rate of 7% per year, compounded continuously, to have \$2500 in five years?sum of 2 consecutive numbers is 139