The units digit of a two digit number is 4 times the tens digit. if the digits are reversed, the new number is 54 more than the original number. find the number

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

When you find the area of a triangle do you use in. or in2

Use the second shift theorem to find the inverse laplace transform of (e^−3s) / (s^2 + 2s − 3)