Answer:
1st option
Step-by-step explanation:
Given the 2 equations
2x + 5y = 19 → (1)
y = 3x - 3 → (2)
Substitute y = 3x - 3 into (1)
2x + 5(3x - 3) = 19
 
        
             
        
        
        
ANSWER

EXPLANATION
The sum of the first  terms of a geometric sequence is given by;
 terms of a geometric sequence is given by;

Where  , is the number of terms and
, is the number of terms and  is the first term.
 is the first term.
When  , we have
, we have  , we get;
, we get;





 
        
             
        
        
        
What do you need help with
        
             
        
        
        
Answer:
2x^2-2x
Step by Step Explanation:
The 2   x^2 come together to form 2x^2 and since there is no other number that has x but no ^2 -2x stays the same.
 
        
             
        
        
        
28 x 2 = 56 half dollar coins