Answer:
The perimeter of a triangle is the sum of all its three sides. 
So, 
0.75+0.75+0.75 = 2.25inches
 
        
             
        
        
        
Answer:  60 students
Step-by-step explanation:
So, in the first situation 430 students were surveyed and 258 said that their favourite pet was a dog. The second situation is 100 students and x said that their favourite pet was a dog. We are solving x.
430=258
100= x
Cross multiply
So that is 
430 x X= 100x258
430x=25800
Divide both sides by 430
Answer: 60 students
 
        
             
        
        
        
Answer: y=2(x-3)-5
I hope this is good enough:
 
        
             
        
        
        
200, because the more samples you have the more correct you will be.
        
                    
             
        
        
        
Volume of prism B=800*6³/8³
=800*27/64
=25*27/2
=575/2
=287.5 cm³