Answer:
(x-13)(x+3)  = f(x) = x^2 -10x -39
Step-by-step explanation:
 
        
             
        
        
        
To find the unit rate you would need to find the cost per ounce of potato chips. To find this you would simply divide. $3.80/20 = .19
So the unit rate in your question is $0.19 
Hope this helps! :)
        
             
        
        
        
-5x +2/9 +2x- 2/9 =7/9
collect like terms
-3x+0=7/9
cross-multiply
-27x=7
solve for x
x=-7/27
        
             
        
        
        
Six women push grocery carts up a ramp as shown.
2 carts weigh 50 lbs. each.
4 carts weigh 20 lbs. each.
How much work was done?
_____________ ft.-lbs. (total work)
 
        
        
        
Because it volume is 175 ,it base area is 175/7=25 that is the square's area.
S=a2 ,a=side of the base.so a=5