Solve for x.

2x + 5 = 27
What is the answer?

A). 8.5

B). 11

C). 16

D).64

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

Could somebody me with this radical simplification?