Answer:
The value of an exterior angle is the sum of the two interior angles not adjacent to it so
a:
x = 64 + 45 = 
b:
3x + 6 = 153 so
3x = 147 so
x = 

Answer:
a variable is an unknown number, the point of algebra is to solve for the. they are represented by letters, 5x is an example.
Step-by-step explanation: skillz
<span>What is the geometric mean for the numbers 175 and 7?
175/x = x/7
x^2 = 7*175
x = 35</span>