Answer:
a. $9,425.10 
b. $3,707.60
Step-by-step explanation:
 
        
             
        
        
        
For the first one, you did good. I will just suggest a couple things.
Statement              Reason
JK ≅ LM                   Given
<JKM ≅ < LMK        Given  (You did both of these steps so well done.)
MK ≅ MK              Reflexive Property (Your angle pair is congruent but isn't one of the interior angle of the triangles you are trying to prove.)
ΔJMK ≅ ΔLKM        SAS
Problem 2: (You also have a lot of great stuff here.)
Statement          Reason
DE ║ FG              Given
DE ≅ FG              Given
<DEF≅<FGH       Given
<EDF≅<GFH       Corresponding Angles (You don't need to know that F is the midpoint but you got corresponding angle pair which is correct.)
ΔEDF≅ΔGFH        ASA
<DFE≅<FHG       CPCTC  
 
        
             
        
        
        
Notice the picture below
negative angles, are just angles that go "clockwise", namely, the same direction a clock hands move hmmm so....  and one revolution is just 2π
now, you can have angles bigger than 2π of course, by simply keep going around, so, if you go around 3 times on the circle, say "counter-clockwise", or from right-to-left, counter as a clock goes, 3 times or 3 revolutions will give you an angle of 6π, because 2π+2π+2π is 6π
now... say... you have this angle here... let us find another that lands on that same spot
by simply just add 2π to it :)  

now, that's a positive one
and  

to get more, just keep on subtracting or adding 2π
 
        
        
        
Answer:
3 ÷ 0.25
Step-by-step explanation:
There are three squares, so 3.
Each square is divided into four squares,
One square out of four squares is,
1 / 4 = 0.25
Therefore,
3 ÷ 0.25
 
        
             
        
        
        
To get the answer we can use proportion
10 large ------------- 14 small
x large -------------- 35 small
crossmultiply
10*35=x*14
350=14x            /:14
350:14=14x:14
25=x-its the answer