Please help quick Select the lines that represent functions. 1
-7
-5
-5
-4 -3 -2 -1
1
2
3.
X
7
4
5
6
-1
-2
-3
v
-4
-5
-6

The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4? r^2. write your answer in scientific notation.