I need halp puh-lease What is the value of the expression: x2 + y2 + x - y
when x = -1 and y = 3

6

8

12

16
and if u can plz tell why

How long would it take for a ball dropped from the top of a 576-foot building to hit the ground? round your answer to two decimal places.

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?