Very urgant as well
write an addition equation to model the following problem. then solve the equation.
a textbook has 430 pages. there are18 pages in the index. how many pages of the textbook are not in the index?
let p be the number of pages not in the index. what is an addition equation that models the problem?

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