The SAT scores are normally distributed with a mean of 1059, and a standard deviation of 145. Find the given probabilities for a randomly selected
student:
1. The student's SAT score is between 900 and 1000.
2. The student's SAT score is less than 950.
3. The student's SAT score is higher than 1400.
4. What is the score of the bottom 10%?
5. What is the score of the top 5%?

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

Find the difference (8ab+a+2) - (3ab+6)

40) linda was making chocolate truffles for the first day of school. the recipe for 20 chocolate truffles is: i cup of cream 2 cups of dark chocolate she noticed this will not be enough truffles for the 42 sure that all students in each homeroom next year. to be sure that all students receive a truffle, linda must adjust her recipe. a. complete the recipe for 42 truffles cups of cream - cups of dark chocolate work: