Answer:
20% of 45 is 9. sale price- 9$
Step-by-step explanation:
20% of 45
20/100 = 0.20 (0.20) (45) = 9
In general this property looks like
a*1 = a.
This is identity property of multiplication, or multiplicative identity property.
A convex polygon is a simple polygon (not self-intersecting) in which no line segment between two points on the boundary ever goes outside the polygon. Equivalently, it is a simple polygon whose interior is a convex set.
The answer would be 2.5 feet or 2 1/2
