Answer:

Step-by-step explanation:
Convert each to a improper fraction



Answer:
C = 3b
Step-by-step explanation:
If each bottle costs 3 dollars, then the cost of b bottles would be 3b.
Answer:
Step-by-step explanation:
Discussion
What you have presented is called a cyclic quadrilateral. A cyclic quadrilateral is a 4 sided figure whose angles (4 of them) all touch the circumference of a circle.
Here's what you want to know. Two angles that are opposite each other are supplementary (they add to 180 degrees)
Equation
x + 80 = 180 Subtract 80 from both sides.
Solution
x + 80 - 80 = 180 - 80 Combine
x = 100
Answer
x = 100
Https://us-static.z-dn.net/files/d63/6f064638901e33bea26f4fc25a74aa69.jpg
Answer
the least common is 21
3x7=21 7x3=21
1/3=7/21
5/7= 15/21
hope this helps and have a wonderful day :)