Answer:
The answer is C. It is Uncertain whether many dietary supplements are Effective
Step-by-step explanation:
I think the answer is letter B
Answer:
the sum of exterior angles of a polygon is 360°
Answer:
10.5 I think
Step-by-step explanation:
(1/2) *12 is 6
(1/2)*21 is 10.5
10%
This is because mr Matthews added only 10% to the 80 pounds