1⁄4 + 4⁄8 + 4⁄6 = ???

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Factor the polynomial. b^2 + 4b + 4

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet