Darcy plants some flowers in her back yard. she plants 5 zinnias and 7 verbenas in each of her 3 flower beds. what is the total number of flowers she planted?

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

The angle of elevation from point a to the top of a cliff is 38 degrees . if point a is 80 feet from the base of the cliff , how high is the cliff ?