Maria works for an online auto trader. She makes a piecewise function to show the cost to place an online advertisement. c(x)39 when x ≤ 6 39 + 5(x − 6) when x > 6 What is the cusp of the function?

That table shows measurements (in invhes$ from cubes with different side lengths. which pairs of variables have a linear relationship? check all that apply

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0