Melanie is 4 ft tall. Her father is 6 ft tall. In a photograph of the two of them standing side by side, Melanie's image is 2 inches tall. Although their images are much smaller, the ratio of their heights remains the same. How tall is Melanie's father's image in the photo?
What is the scale factor of their actual heights to their height in the photo?

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.