Atree casts a 13 foot shadow. the distance from the top of the tree to the far end of the shadow is 22 feet. if the tree is perfectly straight and creates a right angle with the ground, how tall is the tree?

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Students at a local high school were asked to identify their favorite school subject. the percentages of students' favorite subjects are shownuse the drop-down menus to complete the sentences below.