CPM Homework Help : CCG Problem 5-70

Jeynysha has a Shape Bucket with a trapezoid, right triangle, scalene triangle, parallelogram, square, rhombus, pentagon, and kite. If she reaches in the bucket and randomly selects a shape, find:

$P(\text{at least one pair of parallel sides})$
Hint (a):
Which shapes have at least one pair of parallel sides?
Answer (a):
$\frac{1}{2}$

$P(\text{hexagon})$
Hint (b):
Do any shapes have six sides?

$P(\text{not a triangle})$
Answer (c):
$\frac{3}{4}$

$P(\text{has at least } 3\text{ sides})$