Ashelf holds 3 novels, 2 biographies, and 1 history book. two students in turns choose a book at random. what is the probability of that the students choose each of the following?

1. both novels
2.both biographies
3. a history, then a novel
4. both history books

Qrst is a parallelogram. determine the measure of ∠q pls

You coordinate volunteers for litter cleanup in local parks. your spreadsheet lists drivers and the number of seat belts in each driver’s car. the spreadsheet calculates the number of drivers (d) and the total number of seat belts (s). you want to know the maximum number of volunteers, besides drivers, that can be transported to the park in a single trip given that each person must have a seat belt of their own.

Perform the indicated operation. y^2 + 3y - 10 / 3y + 15