18^4 this is another way to show an exponent
The two angles are supplementary angles which means they need to equal 180 degrees when added together.
4x + x = 180
5x = 180
Divide both sides by 5:
x = 180/5
x = 36
Let's look at each answer choice's words per minute:
A) 320/8 = 40
B) 600/12 = 50
C) 350/10 = 35
D) 225/5 = 45
The fastest is 50 words/min which is B
