Answer:
4378
Step-by-step explanation:
Its clearly given that each term is multiplied by 3 
I.e- 2×3 = 6
 6×3= 18
 and so on....
so here the G.P series is a=2 and r=3
To find the 8th term ar^8-1 
 ar^7 = 2×3^7
 = 2×2187
 = 4378
 
        
             
        
        
        
Answer:
62.84
Step-by-step explanation:
Volume of both cones is approximately 12.57
formula= pi*r^2*h/3
Volume of the cylinder is approximately 37.7
formula= pi*r^2*h
you add the volumes
12.57+12.57+37.7
= 62.84
 
        
             
        
        
        
Step-by-step explanation:
3t + 4 = 19
3t = 15
Hence t = 5.