Answer:
10%=$25.20
25%=$21.00
35%=$18.20
Step-by-step explanation:
A mark-down in price of 10% is the same as 90% of the original price. 90% can be expressed as 0.9. $28.00(0.9)=$25.20. This same explanation holds true for the 25%/35% mark-down: $28.00(1-0.25)=$21.00; $28.00(1-0.35)=$18.20. Additionally, if you try this with the 40%/50% mark-downs it doesn‘t work.
Answer:
The answer is "0.9192".
Step-by-step explanation:

Answer:
1) Option A) is correct
The given rational exponent expression is not simplified correctly as a radical expression is
![x^{\frac{7}{4}}=\sqrt[7]{x^4}](https://tex.z-dn.net/?f=x%5E%7B%5Cfrac%7B7%7D%7B4%7D%7D%3D%5Csqrt%5B7%5D%7Bx%5E4%7D)
2)Option A) is correct
That is 
Step-by-step explanation:
1) Given that 
is the correct answer but in the given problem they gave the RHS as wrong.
Therefore the given rational exponent expression is not simplified correctly as a radical expression is
![x^{\frac{7}{4}}=\sqrt[7]{x^4}](https://tex.z-dn.net/?f=x%5E%7B%5Cfrac%7B7%7D%7B4%7D%7D%3D%5Csqrt%5B7%5D%7Bx%5E4%7D)
2)Given that the rational exponent expression is 
To find it as a radical expression:




Therefore 
Therefore Option A) is correct
That is 
Answer:
3789
Step-by-step explanation:
To find the perimeter of a rectangle you can multiply the length by 2 and the width by 2, or you can add the four sides together.
The wrong equation is w + 3w = 90 because it only has one width and one length, which would be half the total perimeter.