I think you need to add a picture?
50 I think. 2 1/2 times 20 minutes equals 50
If the whole angle (ABC) is equal to 133, we can add angles ABD and DBC to find x.
10x+13=133
Subtract 13 from both sides to get
10x=120
Divide both sides by 10 to get that x=12
We can now plug the value of x into ABD to find its measure.
7(12)+4
Simplifies to 84+4, which is 88
So angle ABD is equal to 88 degrees.
:)
Add the two known angles together and subtract that number from 180° and that is your answer.
You would use L to measure the amount
