Answer:
Option C) is correct
That is t=StartFraction p Over s Subscript 1 Baseline minus s Subscript 2 Baseline EndFraction
It also can be written as 
Step-by-step explanation:
Given equation can be written as below:

Now to solve the equation for t:

Taking common term t outside on RHS we get


Rewritting the above equation as below

Therefore option C) is correct
That is t=StartFraction p Over s Subscript 1 Baseline minus s Subscript 2 Baseline EndFraction
It also can be written as 
 
        
                    
             
        
        
        
Answer is 13 because the numbers are increasing though odd numbers that are also increasing if that makes sense. 
It’s going from 4 > 9 > 16 > 25 > 36 
so from 4-9 it adds 5 and from 9-16 it adds 7 and goes on so that’s it’s like
 +5 > +7 > +9 > +11
sorry if it doesn’t make good sense
        
             
        
        
        
Answer:
1: 374cm
2: 248mm
3: 69m
I believe this is the right answer but I don't think the labels are correct 
 
        
             
        
        
        
-20=-4x-6x
4x+6x=20
10x=20
x=20:10
x=2
proof:
-20=-4×2-6×2
-20=-8-12
(-8)+(-12)=-20