Brian buys bikes to resell. he applies a mark up of 15%. write two expressions to represent the selling price. let (b) represent the original cost of the bike.

3. solve the given inequality and graph the solution on a number line.

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.