X = -4
the slope is undefined as it only passes through the x-axis on -4.
        
             
        
        
        
1.
D
2.
D
3.
A and D
4.
Didn't Understand
retype in comment and send
 
        
                    
             
        
        
        
Answer:
A dress originally costs $120
Step-by-step explanation:
To find the original cost of the dress, we will follow the steps below;
let x represent the original cost of the dress
75% of x  = $90
 ×    x   = $90
  ×    x   = $90
 =   $90
  =   $90
MULTIPLY both-side of the equation by 100
 × 100 =   $90×100
 × 100 =   $90×100
At the right-hand side of the equation, 100 will cancel out 100, leaving us with just 75x
75x = $9000
DIVIDE both-side of the equation by 75
75x/75 = $9000/75
At the left-hand side of the equation 75 will cancel-out 75 leaving us with just x
 x=  $9000/75
x = $120
A dress originally costs $120
 
        
             
        
        
        
Answer:
Answers in Explanation
Step-by-step explanation:
First Question:
 + [18 ÷ 3 x 4 - 15] - (60 - 7^2 - 1)
 + [18 ÷ 3 x 4 - 15] - (60 - 7^2 - 1)
 + [24 - 15]  - (60 - 49 - 1)
 + [24 - 15]  - (60 - 49 - 1)
 + 9 - 10
 + 9 - 10
10 + 9 - 10
<u>Answer = 9</u>
Second Question:
5x + 2x = 7x
5x^2 + 3x^2 = 8x^2
2x + 3x - x = 4x 
2x + 3y + x + y = 3x + 4y
9x - 6x = 3x
-7y + 3x + 4x + 3y = 7x - 4y
-7x^2 + 2x^2 + 9x^2 = 8x^2
(3x^2 + 5x + 4) - (-1 + x^2) = 2x^2 + 5x + 5
(3 + 2x - x^2) + (x^2 + 8x + 5) = 10x + 8 
(3x - 4) - (5x + 2) = -2x - 6
(2x^2 + 5x + 3) - (x^2 - 2x + 3) = x^2 + 7x
(3x^2 + 2x - 5) - (2x^2 - x - 4) = x^2 + 3x - 1
Third Question:
17x + 2y
(5x + 12y) + (3x + y) = 8x + 13y
17x - 8x = 9x
2y - 13y = -11y
Answer: 9x - 11y
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
because 1 loaf =6 eggs and its asking for 1 loaf