Acute: The angle is LESS than 90 Degrees
Obtuse: The angle is MORE than 90 Degrees
Right: The angle is EXACTLY 90 Degrees
        
             
        
        
        
Answer: H, 1/21
Step-by-step explanation:
7 letters in October
1 b / 7 letters
2 o / 6 letters
1/7 * 2/6 = 2/42 = 1 / 21
 
        
             
        
        
        
Parallel lines never intersect purpendicular lines intersect at a single point forming a 90 degree angle
        
             
        
        
        
Answer: In 2008 the population was 21,525,144
Step-by-step explanation:
 You need to use the following formula for Exponential decay:
 
 Where  is the initial population in the year 0,
 is the initial population in the year 0,  is the rate of decay and
 is the rate of decay and  is the time.
 is the time.
 In this case, you can identify that:
 
 Therefore, substituting these values into the formula for Exponential decay, you get:
 
 Then, in 2008 the population was 21,525,144