There were 130 faculty at a conference. If there were 18 more women than men attending, how many of each gender attended the conference?

The newest cars have 12 different accessories and the buyer pays for each one separately.  If a particular buyer wants to buy four accessories, how many different accessory packages will there be?

There are 100 students who are taking history or sociology. If 10 are taking both courses and 45 are taking just history, how many are taking sociology?

Last year's freshman class at big state university totaled 5,304 students. Of those, 1,257 received a merit scholorship to help offset tuituon costs their freshman year (although the amount varied per student). The amount a student recieved was N($3,443, $450). If the cost of full tuition was $4,500 last year, what percentage of students who recieved a merit scholarship did not recieve enough to cover full tuition? (Round your answer to the nearest whole percent.)