How many children would need to be surveyed if the economist wants to be within 2 percentage points of the true proportion with 92% confidence

Prove that 16^4-2^13-4^5 is divisible by 11.

Simplify the given expression leaving the answer in improper fraction form. 2/3+5/6

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.