Answer:
The most frequently employed tools are traditional, which include physical ... These three tools can be used independently or conjointly, depending on the type of ... Learning tools can represent mathematical ideas in multiple ways, providing ... nature of concepts, such as numbers, thereby making them real and tangible,...
Step-by-step explanation:
 
        
             
        
        
        
Answer:
14
Step-by-step explanation:
answer is 14 trust me
 
        
             
        
        
        
Step-by-step explanation:
okay so -25 • -9 = 9+10 
 225 = 9+10
225 = 19
19. 19 
= 11.8 
 
        
             
        
        
        
It’ll be 20. 
12+28+15+25+20=100 
100/5= 20 
Add all the numbers and then divide by the total amount of numbers there and that’s your answer