What is the answer to this problem?

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

Find the slope of the line passing through a pair of points