Answer: x= 207.8873386
Step-by-step explanation: 
expecting both 2x-15 and 3x are angles in radiant, let's draw a rhombus ABCD
∠ABC = 2x-15
∠ BCD = 3x 
∠ABC + < BCD= π ( 180° in radiant)
2x - 15 + 3x = π
 5x - 15 = π
x - 3 = 1/5π
= 3.628318531 = 207.8873386
2x−15°+3x=180
5x-15°=180
5x=195°
x=39°
 
 
        
             
        
        
        
Answer:
1.85
Step-by-step explanation:
0ne (1) and Eighty - five hundredths (0.85)
Hope this helps
Mark Brainliest!
 
        
                    
             
        
        
        
Answer: 271 miles
Step-by-step explanation:725÷8 to find the MPH which is 90.625. Then  
multiply 90.625 by 3 which is 271.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
12 multiplied by 9 is 108. That gives us the square. The triangle base is 9. The height is 7. 7 multiplied by 9 is 63. 63 divided by 2 is 31.5. 108 add 31.5 is 139.5 cm squared.
 
        
                    
             
        
        
        
(7 + 5) x 6 + 3. (7 + 5 = 12, 12 x 6 = 72, 72 + 3 = 75.)