There are, generally speaking, two types of statistical inference. They are: a. sample estimation and population estimation b. confidence interval estimation and hypothesis testing c. interval estimation for a mean and point estimation for a proportion d. independent sample estimation and dependent sample estimation e. None of these choices

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.

Find the value of x. also give me an explanation so i can complete it to other questions as well, : )