Answer: A picnic table is on sale for 60 percent off. The original price of the picnic table is x, $144.10.
Step-by-step explanation:
Given equation: 
To find x, divide 0.6 on both sides, we get

Also 
Thus, 
So the best scenario modeled by the above equation is 
"A picnic table is on sale for 60 percent off. The original price of the picnic table is x, $144.10."
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
Erika: y = 35x + 100
Ly: y = 60x + 25
60x + 25 = 35x + 100
25x + 25 = 100
25x = 75
x= 3 weeks
Erika: y = $35(3) + 100= 105 + 100 = $205
Ly: 60(3) + 25 = 180 + 25 = $205
 
        
             
        
        
        
Answer:
a= -40
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
SA = 470 m²
volume = 494 m³
Step-by-step explanation:
<u>Individual areas</u>
Back = 4 x 19 = 76 m²
Top = 5 x 19 = 95 m²
sloped side = 5 x 19 = 95 m²
base = 8 x 19 = 152 m²
end = (4 x 5) + 1/2(3 x 4) = 26 m²
Total SA = 76 + 95 + 95 + 152 + (2 x 26) = 470 m²
<u>Volume</u>
volume = (4 x 5 x 19) + 1/2(3 x 4 x 19) = 494 m³