Answer: Choice C) Star shaped symbol
We can rotate the star symbol 90 degrees to have it line up with its original image. The before and after images would be identical after doing such a rotation. So this figure has rotational symmetry.
The other figures would change if we rotated them some angle x such that 
, so they do not have rotational symmetry.
Answer:
No
Step-by-step explanation:
The inequality will not be the same if the same amount is added both sides.
The addition property states that if the same quantity is added to both sides, then the inequality still remains true. Take for example:
let x, y, and z be real numbers. It follows that:
if x ≥ y, then x + z ≥ y + z
This holds true for whatever value of z
If x ≤ y, then x + z ≤ y + z
The inequality remains true.
Answer:
800$
Step-by-step explanation:
640/80=8
8=1% so
8x100=800
100%=800
Answer:
1. A letter, A, added to a letter, B, equals ten.
2. A letter, x, which is multiplied by 4, then has a number, y, subtracted from it to equal a letter, a.
If you try write these out, I'm sure you'd get the algebraic expression given.
