Are these equivalent 2C(3) + 4B -10C +5B AND 16c + 9b 3x

Are these equivalent
2C(3) + 4B -10C +5B AND 16c + 9b
3x -5y(2) + (2x +5x) + 12y
(a+ 5b) – 6b ÷ 2 + 5a(3)
Rewriting Percent
Expressions
Percent Increase:
  Steps:
  1. Add the percent increase to 100%
  2. Change your new percent to a
decimal
  3. Take the percent of the original
amount by multiplying
Example:
1.00s
+.42s
1.42s
•  Types of percent increase:
•  Markup
•  Sales tax
•  Tip
Percent Decrease:
  Steps:
  1. Subtract the percent decrease from
100%
  2. Turn your new percent into a
decimal
  3. Take the percent of the original
amount by multiplying
Example:
1.00p
- .02p
.98p
•  Types of percent decrease:
•  Markdown
•  Discount
•  Sales