Answer:
a≤39/5
Step-by-steep explanation:
60a+64≥80a−92
Step 1: Subtract 80a from both sides.
60a+64≥80a−92
-80a       -80a
−20a+64≥−92
Step 2: Subtract 64 from both sides.
−20a+64≥−92
          -64   -64
−20a≥−156
Step 3: Divide both sides by -20.
−20a≥−156
a≤39/5
 
        
             
        
        
        
There is 350 boys the the ratio is 2 (or 2 1/2) boys for every 1 girl
        
             
        
        
        
Answer:

Step-by-step explanation:

 
        
             
        
        
        
Answer:
All functions are relations
Step-by-step explanation:
 
        
             
        
        
        
 f(x) = −2x + 12, find f(x) when x = −3.
replace x = -3 then
f(-3) = (-2)(-3) + 12
        = 6 + 12
        =18
Answer is C) f(−3) = 18
f(p)=7/11p-10 Find f(77)
f(77) = 7/11 (77) - 10 (cancel out 77 and 11)
        = 7 * 7 - 10
        = 49 -10
        =39
       Answer is D) f(77) = 39