It is 4pi/7, or b. Just want to help ;)
Answer:
(a) 
(b) 
Step-by-step explanation:
It is given that 
(a) We have given equation 



(b) 



Step-by-step explanation:
3y +4 =5y -10
2y = 14
y = 7
DEF = (3Y+4)× 2 OR (5Y-10) ×2 OR (5Y-10+ 3Y+4)
Def= (3 ×7+4)×2
=50 degree
Answer:
Step-by-step explanation:
Answer:
adenosine triphosphate.
Step-by-step explanation: