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?

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?