An engineering school reports that 55% of its students were male (m), 40% of its students were between the ages of 18 and 20 (a), and that 25% were both male and between the ages of 18 and 20. what is the probability of a random student being female between the ages of 18 and 20? assume p(f) = p(not m).

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

What are the solutions of the equation x4 – 5x2 – 14 = 0? use factoring to solve. someone !

Aliter of water contains about 3.35 x 10^25 molecules. a certain river discharges about 2.9x 10^8 l of water every second. about how many molecules does the river discharge every minute? write your answer in scientific notation