A busload of campers stopped at a dairy stand for ice cream. They ordered 87 cones, some soft-serve at $2.25 each and the rest hard-pack at $1.25 each. If the total bill was $135.75, how many of each type of cone were ordered?

15 liters is approximately how many gallons

The area of each triangle is 7 square units. the surface area of the triangular prism is

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?