An online company sells handmade samurai katana swords. the website costs $ 215 a month to maintain. each katana costs $ 250 to make, and they sell each katana for $ 675.

a. create a linear model in the form y=mx+b where x is the number of swords sold per month and y is the net monthly profit.

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2