Jessica and her 2 sisters want to take a camping trip. they have $225 saved. each of them will save $21 a week until they have at least $512 to pay for the trip. how much money will they save after 4 weeks? will they have enough money to pay for the trip?

Find an equation (in term of x) of line through the points (-1,3) and (1,4)

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

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