Answer:
1. 3/4
2. 3/4
3. tan(X) = tan (A)
Step-by-step explanation:
If the width is 12 and the length is 18, the perimeter of the rectangle is 12 + 12 + 18 + 18, or 60. So yes the perimeter can be 60.
Answer:

Step-by-step explanation:
Question: 
1) Add 10 to both sides:

2) Multiply both sides by the reciprocal of 2/3: (3/2)


3) Simplify the fraction:

Answer:
Step-by-step explanation:
Sum of exterior angles of regular polygons is 360°.
If each angle measures 15°, then the number of sides:
- 15n = 360
- n = 360/15
- n = 24