Answer:
this rule follow the airthmatics progression. 
 
        
                    
             
        
        
        
Answer:
7.5×10^4
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.
Hope this helps <3
 
        
                    
             
        
        
        
Answer:
3(x + 4) = 3(x) + 3(4)
3(x + 4) = 3x + 12
3x + 12 = 3x + 12
Subtract 12 from both sides
3x + 12 - 12 = 3x + 12 - 12
3x = 3x
3x - 3x = 3x - 3x
= 0
 
        
             
        
        
        
to get an A, she needs >=160 points and she already has 125 points
let 'x' be the number of points on the last part of her project then
125 + x >= 160 
x >= 160 - 125 
x >= 35 
Sarah needs at least 35 points on the last part of her project.
 
        
                    
             
        
        
        
The parabola has a minimum value of -3 due to the subtraction at the end of the equation.