Elaine walks her dog 2 times a day. Her walk in the evening is 2.5 times as far as her morning walk. At the end of the week she walked the dog 30 miles. How long is her morning walk?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?