2. during a 5-day training at your department, the number of visitors tripled each day. if the training started on a monday with 345 attendees, what was the attendance on thursday?

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.