i really dont know but downlaod photomath that shall work perfectly
 
        
             
        
        
        
Answer:
r = 6
Step-by-step explanation:
V(cyl) = π · r² · h
144π =  π · r² · 4
144 = r² · 4
<u>144</u> = r² 
  4
r =  ÷
 ÷ 
r = 12/2
r = 6
 
        
             
        
        
        
Answer:
false i think? and true
Step-by-step explanation:
 
        
             
        
        
        
foster can make 42 1/4-pound turkey sandwiches
explanation: 10.5 divided by 1/4 is 42 
 
        
             
        
        
        
Calculate h(1):
h(a) = 2a - 4 → h(1) = 2(1) - 4 = 2 - 4 = -2
Next calculate g(-2):
g(a) = a - 5 → g(-2) = -2 - 5 = -7
<h3>Answer: g(h(1)) = -7</h3>