On the first three tests, sally scored 75 points. on the third test her score was 1 point more than on the second test. her average on the three tests was 82. what were her scores on the second and third tests?

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?