Answer:
r=3.25
Step-by-step explanation:
3 divided by 0.5=6
6-2.75=3.25
r=3.25
Well this is easy.
We have linear inequality,

Simplifying this a bit to get,

Divide by 3 (both sides),

Or with interval notation,
.
Hope this helps. :)
2nd option , i hope that helps
The answer is only 5/8 slices of cake is left. Hoped this helped!

The given Angles (4x + 2) and (3x + 3) are forming linear pair, so
now, let's find Angle DCB :