Aileen deposited money into an account in which interest is compounded semiannually at a rate of 2.1%. how much did she deposit if the total amount in her account after 3 years was $3952.08, and she made no other deposits or withdrawals.
a. $3489
b. $3562
c. $3712
d. $3751

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

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Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.