There's a balloon company 250 ft above sea level. a hot air balloon is launched and roses at a rate of 110 ft/min. at the same time a balloon 2200 ft above sea level descends at a rate of 150 ft/min. how long will it be until the balloons are at the same elevation?

1. what is the measure of ∠abc? what is the measure of ∠abd?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

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?