Answer:
A. Olivia is correct.
Step-by-step explanation:
If the total amount of gravel stated is 689 pounds and you want to check your answer, you can subtract one of the two trucks from the total. Which would be either 689 - 231 or 689 - 458. Therefore, A is the correct answer.
 
        
             
        
        
        
Answer: The area is 12.55
 
        
        
        
 Answer:
106 m^2
Step-by-step explanation:
First multiply the shaded area:
12 * 10 = 120
Then multiply the white space:
7 * 2 = 14
Then subtract the white space from the shaded area to find the area of only the shaded area.
120 - 14 = 106
Final answer: 106 m^2
I hope this helps!
 
        
                    
             
        
        
        
Answer:
bran to blueberry: 4:1
banana nut to bran: 1 to 2
total to corn: 12 muffins to 5 muffins
bran to total: 1/3
Step-by-step explanation:
hope that helped.
 
        
             
        
        
        
<span>x	2	3	4
f(x)	5.5	7	8.5 </span>
The first function is linear. When you subtract 5.5 from 7, you get 1.5 and when you subtract 7 from 8.5 you also get 1.5. That's how we know it's a linear function because there's clearly pattern. HOWEVER, if you had 5.5, 7, and 9 that would not be a linear function. Why? Because when you take away 7 from 9 you get 2. In order for it to be a linear function you have to get the same exact number when you subtract. 
<span>x	0	3	6
f(x)	1	8	64</span> 
The second function is exponential because when you divide you get the exact same number. 8/1 = 8 and 64/8 = 8. So this is exponential. But if you had 72 instead of 64 it would not be an exponential function because there has to be a pattern. 
I hope this makes sense. Btw I had this question on my test too and this is correct.