Let X be the original price.
Do a 40% increase we get the price: X+0.4X=1.4X
Doing a 25% off we get the new price:
(1.4X)-0.25(1.4X)=1.05X
=X+0.05X.
The new prices are 5% increase from the original price.
We have been given two polynomials 
Let us first multiply these polynomials.

Now, we know that polynomials follows closure property of multiplication.
It means that when we multiply two polynomials, the result will be a polynomial.
Since, when we multiplied the given polynomials, we got
which is a polynomial.
Therefore, the correct option is
The result
is a polynomial.
The arc length of AB is 8 m (app.)
Explanation:
Given that the radius of the circle is 8 m.
The central angle is 60°
We need to determine the arc length of AB
The arc length of AB can be determined using the formula,

Substituting central angle = 60° and circumference = 2πr in the above formula, we get,

Simplifying the terms, we get,

Dividing, we get,

Hence, the arc length is approximately equal to 8.
Therefore, the arc length of AB is 8 m
Answer: C.
is the missing statement.
Explanation: Given: ΔABC with m∠ABC = 90° (view diagram)
Prove: 
Proof: 1. Draw
(construction)
2.
(Angles with the same measure are congruent.)
3.
(Reflexive Property of Congruence)
4.
(AA criterion for similarity)
5. BC:DC=AC:BC (Corresponding sides of similar triangles are proportional.)
6.
(cross multiplication)----------(1)
7.
(Angles with the same measure are congruent)
8.
(Reflexive Property of Congruence)
9.
(AA criterion for similarity)
10. AB:AD=AC:AB⇒
--------------(2)
equation (1) + equation (2) ⇒
⇒
A square rotated about its center by 360º maps onto itself at 90°, 180°, 270° and 360° - 4 different angles of rotation.
You can reflect a square onto itself across two diagonals and two segments that connects the middlepoints of opposite sides - 4 different lines of reflection.