How do I solve this problem and what is the answer? I would really appreciate it if you could help me please! :) -2 divided by 3

The reflexive property of congruence lets you say that ∠pqr ≅

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

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