Answer:
i don't know a counterexample for the first one
A counterexample for the second one is a leaf bug
A counterexample for the third one is a trapezoid, rectangle, rhombus
Answer:
Dilations.
Step-by-step explanation:
A dilation does not preserve congruency since the post-image will be of a different size than the pre-image.
Well the fraction would be 325/1000 and the reduced form is 13/40
Here is your answer

REASON:
[CONCEPT USED: <u>Unitary method</u>]
Number of pages typed by student in 1/5 hour = 2/3
No. of pages typed by the student in 1 hour= 
= 
= 10/3
=

So number of pages written in 1 hour are
3 pages and 1/3 of a page
HOPE IT IS USEFUL
If he started at $x, and we need to double it, we take X and multiply it by 2 creating $2X