The price of a pair of shoes increases from $59 to $71. What is the percent increase to the nearest percent?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

Solve the triangle. a = 21°, c = 105°, c = 5

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