Answer:
-7,3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
363 ft.
Step-by-step explanation:
To calculate the base side which is b we use the trigonometric identity called cosine.

Since we the answer to the nearest whole number it would be b = 363 ft.
 
        
             
        
        
        
<span>Pete's age is 15/3 = 5 years old
Bryan's age is 15 years old
Philip's age is 15+5 = 20 years old
20+15+5= 40</span>