An acute angle is one that measures LESS than 90˚
An obtuse angle is one that measures between 90˚ and 180˚
A reflex angle is an angle that measures between 180˚ and 360˚
There are other many types of angles such as alternate angles and corresponding angles, but those 3 are the main ones.
Have a great day <3
If you are going from a larger unit to a smaller unit, you multiply. If you are going from a smaller unit, you divide

+ 3x + 5
-

+ 6x + 5
-----------------------------------------
4x - 3 + 0
[ Answer ]

[ Explanation ]
- Factor:
(a - 3) + q(a - 3)
-------------------------------------
- Expand
: 

: 

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It’s d, d is the right answer