Step-by-step explanation:
our equation is x²+16x = -44 
- x²+16x= -44 
- x² is the first term so weill have in the middle 2*x* a number 
- x²+2*x*8 = -44 
- the third term is 8² wich is 64 so we will add it in both sides 
- x²+2*x*8+64 = -44+64 
- (x+8)² = 20
Now that we have completed the perfect square let's solve the equation 
- (x+8)² = 20
- x+8 =  or x+8= - or x+8= - 
- x = -8+ or x =  -8- or x =  -8- 
 so the first answer is the correct one 
 64; 8 +/- 
 
        
                    
             
        
        
        
1000 candy bars ... $350
1 candy bar ... $x = ?
If you would like to know what is the unit cost per candy bar, you can calculate this using the following steps:
1000 * x = 350 * 1
1000 * x = 350    /1000
x = 350 / 1000
x = $0.35
Result: She can buy 1 candy bar for $0.35, so the correct result would be B) $.35.
        
             
        
        
        
Answer
22 WHOLE bicycles 
Step by step explanation 
If you divide 100.50 by 50 you get how much it cost for each bicycle which is 2.01 and when you divided 45 by 2.01 you get 22 and a bunch of random numbers but you can’t get that part of a bicycle because you are not going to cut a bicycle into pieces so you will be able to buy 22 and you will have some left over money but that doesn’t matter you can get 22 whole bicycle with 45 dollars
        
                    
             
        
        
        
Answer:
The slope is -10, and the y-intercept is 1
Step-by-step explanation:
The slope is in the equation and always has a variable next to it (In this case, -10x, so -10 is the slope) 
The y-intercept is 1 and that is also in the equation and does not have any variables next to it (In this case, + 1, so it is 1)
 
        
                    
             
        
        
        
The answer would be C) As the number of hours of studying increases, test scores increase because the scatterplot has a cluster that increases from left to right.
Any questions? Ask me in the comments bellow.
Hope this helps. :)