Ruby is buying chocolates for her friends. The candy store charges $13.80 for a box of chocolates, and each additional piece of chocolate costs $0.23. Ruby has $21 to spend. She buys x additional pieces along with a box of chocolates. Which inequality correctly represents the given situation?

A.0.23x + 21 ≤ 13.8
B.13.8 + 21 ≤ 0.23x
C.13.8 + 0.23x ≤ 21
D.13.8 + 0.23x ≥ 21

What is the reflection image of (5,-3) across the line y = -x?

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?

The scatterplot represents the total fee for hours renting a bike. the line of best fit for the data is y = 6.855x + 10.215. which table shows the correct residual values for the data set?