Answer:
(2,8)
Step-by-step explanation:
 
        
             
        
        
        
Answer: You can simply use a calculator. 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Interest earned = $32.835
Step-by-step explanation:
Given the following data;
Principal = $275
Number of times = 0.5
Interest rate = 2.9% = 0.029
Time = 4 years
To find the interest earned, we would use the compound interest formula;
 
 
Where;
A is the future value. 
P is the principal or starting amount. 
r is annual interest rate. 
n is the number of times the interest is compounded in a year. 
t is the number of years for the compound interest. 
Substituting into the equation, we have;
 
 
 
 
 
 

A = $307.835
Interest earned = 307.835 - 275
Interest earned = $32.835
 
        
             
        
        
        
Answer:
B: 39 degrees
Step-by-step explanation: The angles in a triangle add up to 180 degrees. 180 - 30 - 24 = 126. 
126 = (3x-9). 
126 - 9 = 117. 
117 / 3 = 39