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What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.