Will mark brainlist which variable expression represents the following word phrase? four times the sum of five and a number4.5+n4n + 54(5 + n)n. 5+4

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Simplify this expression.2(10) + 2(x – 4) a. 2x + 16 b. x + 12 c. 2x + 12 d. x + 16