The answer is got is X=5 :)
Answer:

Step-by-step explanation:
Height of the Rectangle
Width of the Rectangle
Area of the Rectangle = Height X Width

The area of the rectangle is 
Answer:
0.1
Step-by-step explanation:
0.3 x 7= 2.1
2.1 - 2= 0.1
Answer:
20
Step-by-step explanation:
You need to add all four then divide the answer by 4.
Hope this helps.
Answer:
d) 28.472
Step-by-step explanation:
you need to find the length of all the outside edges. for the triangles you will need to use the pythagorean theorem