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transform The sum of two numbers is 25. Their 차이 is 7. Find the numbers.Christopher is 20 years younger than Ishaan. Ishaan and Christopher first met two years ago. Fourteen years ago, Ishaan was 3 times as old as Christopher.How old is Ishaan now?5 times a number less than 30The product of two numbers is 30. If one of the numbers is 6/7, what is the other number?Melissa deposited 4000 into an account with 2.6% interest, compounded quarterly. Assuming that no withdrawals are made, how much will she have in the account after 9 years?