Answer: -30, -10, 15, 20
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
the first one  is correct ive T a k e n this testing.
Step-by-step explanation:
 
        
             
        
        
        
The required ratio of cakes baked to hours worked = 30: 1
<u>Concept:</u>
We know that a ratio is a term in mathematics that signifies how many times one value contains the other.
<u>Given:</u> The number of cakes baked varies directly with the number of hours the caterers work. 
<u>Explanation:</u>
From the given graph, it can observe that,
30 cakes are made in 1 hour. ( When we draw a vertical line from <em>x </em>= 1 to the curve, we get <em>y</em>=30 i.e. point is ( 1,30).
The required ratio of cakes baked to hours worked = 30: 1
Learn more:
brainly.com/question/24728840
 
        
             
        
        
        
Answer:
A.  
1. 5cm
2. 10cm
3. 20cm
4. 40 cm
Step-by-step explanation:
I think you need to double the area of the scaled factor.