How I’d do it: 
5/6 three times makes 15/6. Made into a mixed fraction is 2 3/6, which in its simplest form is 2 1/2. 
When converted to ounces, assuming that 6/6 is one complete ounce, then you get 2.5 ounces. 
The total weight she picked up is 2.5 ounces.
        
             
        
        
        
Answer:
False
Step-by-step explanation:
the area (A) of a rectangle is calculated as
A = length × breadth
   = (x + 5)(x - 5) ← expand factors using FOIL
   = x² - 5x + 5x - 25
  = x² - 25 ≠ x² - x - 15
 
        
             
        
        
        
Answer:
3 dollars for each can of tuna
Step-by-step explanation:
9-3=6
6-3=3
3-3=0
 
        
                    
             
        
        
        
V=LWH
SA=2(LW+LH+WH)
V=240
first check that they are 240 volume
multiply numbers they should equal 240
the first one (A) can be eliminated since the dimentions are the same and therefor the surface areas are the same
2nd one check so far
3rd one (C) 6*4*15=360 which is wrong so eliminate this one
4th (d) 12*6*5=360 which is not 240 so eliminate
answer is B
        
             
        
        
        
Domain is all Real Numbers and Range is from 0, but not including 0, to infinity.  So it would be the first one