I'm studying for the psat 8/9 this year and am planning to take it in in the spring. i am using a outdated book to study so i was wondering if i could get any tips from here. alot! anything . : )

Write a recursive sequence that represents the sequence defined by the following explicit formula:

Jasmine wants to eat at 8: 00pm her meal takes 65mins to cook what time does she need to put the meal in the oven

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%