Molly bought 15 yards of fabric for $4.50 a yard to make dog beds. she sells each dog bed for $17.50. after subtracting the cost of the fabric, how much money does molly earns if she sells all the dog beds?

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

(60 points) explain this in detail

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.