Exercise #4: kirk has 12 dollars less than jim. if jim spends half of his money, and kirk spends none, then
kirk will have two dollars more than jim. how much money did they both start with? remember to use “let’s” statements to solve your equation.

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

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