13. Four observations:
1. m<SWT = 90° (given)
2. QW = TW (given)
3. m<RWS = m<UWV (vertical angle pair)
4. m<RWU = 180° (straight angle)
I think the top right 1 is linear
Top left is neither and bottom is exponential
To find the probability simply divide the number of blue marbles by the total:
SO, 3 / 7 = 0.42857
p = 0.429
