Answer:
13/60 was left of the ice cream. 
Step-by-step explanation:
4/5 was left after the first, which can also be written as 16/20. 16/20 - 1/4 (also written as 5/20), which leaves 11/20 which can also be written as 33/60. 33/60 - 1/3 (also written as 20/60) which leaves 13/60 left.
 
        
             
        
        
        
Answer:10,800
Step-by-step explanation:
im not sure but what i did was 90x120=10800
 
        
                    
             
        
        
        
Answer: 320ft^3
Step-by-step explanation:
Assuming the pyramid is just a normal rectangular pyramid and isn't made of stairs...
10x8x12/3 = 320 ft^3
 
        
             
        
        
        
Answer:
obtuse cant be a right angle
Step-by-step explanation:
in order to be  obtuse you  have to be more than 90 dagrees
 
        
             
        
        
        
Answer:
B) Inside the nucleus of an atom are protons and electrons.
Explanation:
Inside the nucleus of an atom are protons and neutrons. Electrons orbit (kind of?) away from the nucleus.