Solution:
Let the original number be x .
As per the problem I took a number, wrote a 9 to the right of it,
So we have x9
Again added the doubled original number to the result.
x9+2x
The resulting sum is 633. so we can write

Hence the original number is 52.
Answer:
$35
Step-by-step explanation:
175/5 = 35
have a nice day! (maybe get this double checked in case I did it wrong :D)
Answer:
D. Velocity
Step-by-step explanation:
The velocity is the dependent variable because it's "dependent" on how much time has passed! That's how I think about dependent/independent variables at least.
I hope this helped!
Deb can cut 20 pieces from the board