A new gaming system at Gamestop is sold for $500.00. It costs the manufacturer of the system $490 to make it. Use this information to help solve 1a, 1b, and 1c. 1a. Write and solve an equation to determine what the percent markup is.

1b. Upon purchasing the unit you will also need to pay 7.5% sales tax, write and solve an equation to determine what the final purchase price will be.
1c. Gamestop is providing their employees with a bonus of 13% commission for everything they sell this weekend. Write and solve an equation to determine what the final purchase price will be.

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?