50 balls are number 1 to 50 and a red dot is painted on those balls that are a multiple of 7. the balls are mixed into a bag and one ball is randomly chosen. what is the probability that the ball is numbered with a multiple of 5 or has a red dot?

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 .

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X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis