Each month, nadeem keeps track of the number of times he visits the library and the number of books he checks out. is there a correlation if you model his data with a linear equation? is there a causal relationship?
visits 3 4 5 6 7 8
books 12 5 6 8 9 11
a. there is a positive correlation and no causal relationship.
b. there is a negative correlation and no causal relationship.
c. there is a causal relationship but no positive correlation.
d. there is neither a correlation nor a causal relationship.

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)