1). A group of students plans a tour. The charge per student is$66 if 25 students go on a trip. If more that 25 studentsparticipated, the charge per student is reduced by $2 times thenumber of students over 25. Find the number of students that willfurnish the maximum revenue. The number of students that willfurnish the maximum revenue is ______? The maximum revenue is$_______?
2) A motorboat is capable of traveling at a speed of 15 milesper hour in still water. On a particular? day, it took 30 minuteslonger to travel a distance of 18 miles upstream than it took totravel the same distance downstream. What was the rate of currentin the stream on that? day?
