Answer:
4t/9 + 18
Step-by-step explanation:
 
        
             
        
        
        
The digit in the ten millions place of a number that is less than 55,000,000 but greater than 25,000,000 can be 3 or 4.
25,000,000 < <u>3</u>5,000,000 < 55,000,000
25,000,000 < <u>4</u>5,000,000 < 55,000,000
        
             
        
        
        
According to your question the height for the triangle is 12inch