Answer:
Step-by-step explanation:
2s + 2.97, if he buys 2 sandwiches and a large drink then 
2 represent the coefficients of s which is the number of sandwiches he bought 
s represent a variable since it a function of the coefficient; s represent the price of sandwich 
2.97 represent the price of large drink and also a constant since it has no letter added to  
 
        
             
        
        
        
Answer:
X = $75
Step-by-step explanation:
X=total cost
 
x* (1/3) =$25
 
multiply by 3 on both sides
 
x=$75
 
        
             
        
        
        
Answer:
-10
Step-by-step explanation:
2*-2=-4
3*-5=-15
1-(-4)+(-15)=-10
 
        
             
        
        
        
5^2 = 25
3^0 = 1 (anything that is exponented by 0 is 1)
25 - 1 = 24
24 is your answer
hope this helps