· Jasmine and four of her friends decided to split the cost of their friend's birthday party evenly. The total cost consisted of $525 to rent a party space plus the cost of pizza. If
Jasmine paid $127.15, what was the cost of the pizza?

Im literally having a mental breakdown

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

Me i’m stuck on all these questions besides the two bottom ones