Im really not sure how to answer this stuff
Answer:
Complementary
x= 60
Step-by-step explanation:
Answer:

Step-by-step explanation:
The perimeter of a shape is the sum of the lengths of the sides.
yards
Hope this helps!
Answer:
3(7x - 3)
Step-by-step explanation:
21x - 9
3(7x - 3)