Find the number of integers between 1 and 1000 that are divisible by 12 or 15, but not by both 12 and 15.

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

Multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2

Aski resort is charging $37.50 to rent a snowmobile for 5 hours. at this rate what will be the cost for a family of 5 to rent snowmobiles for 3 hours on the first day of their vacation and 4 hours for on the last day of their vacation