해법
three and one half of what number is 4200
해법
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Represent the number with
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An integer is two more than another integer. Twice the larger integer is one more than the square of the smaller integer. Find the two integers.Five increased by the product of a number and 2 is at least-25Find the simple interest earned on 2500 at 12% p.a. for 1 yearNathan and Audrey deposit 1,772.00 into a savings account which earns 3% interest compounded monthly. They want to use the money in the account to go on a trip in 3 years. How much will they be able to spend?Alexandra opened a savings account and deposited 1,000.00 as principal. The account earns 8% interest, compounded continuously. What is the balance after 7 years?