Determine if each rectangle is a scale drawing of the given rectangle. explain why or why not.

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

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 .

You are at a restaurant and owe $56.20 for your meal. you want to leave an 18% tip. approximately how much is your tip?