HELP PLS Calculate the correlation coefficient of the following data:

x y
1 5
4 10
8 20
6 14
2 7

A. 0.99
B. 2
C. -2
D. -0.99

What is the total surface area of this square pyramid?

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Stefanie is painting her bedroom. she can paint 2 1/3 square feet in 4/5 of an hour. how many square feet can she paint in one hour?