The answer is 6.33 units.
        
                    
             
        
        
        
Answer:
lol my pp is 1/4 inch
Step-by-step explanation:
 
        
             
        
        
        
Answer:
3/4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
it could be    1. c      2. a      3. d      4. b
or it could be the answers i did for last time in the pic: (that is my old account that got banned)
but i think the answers that are right are the ones i did rn of  1. c      2. a      3. d      4. b
 
        
             
        
        
        
The sum of the first n terms in a geometric sequence given the first term (a1) and the common ratio (r) is calculated through the equation,
                            <span>Sn </span>= (<span><span><span>a1</span>(1−<span>r^n</span>) / (</span><span>1−r)
Substituting the known terms,
                           Sn = (20)(1 - (1/4)^4)) / (1 - 1/4)
                           Sn = 26.5625
Thus, the sum of the first four terms is 26.5625. </span></span>