Bart bought a digital camera with a list price of $219 from an online store offering a 6 percent discount. He needs to pay $7. 50 for shipping. What was Bart's total cost? A. $205. 86 B. $211. 50 C. $213. 36.

How can constraints be used to model a real-world situation?

How can you check that you have correctly converted frequencies to relative frequencies?

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.