20(15x − 34)+9x
Multiply the bracket by 20
(20)(15x)=300x
(20)(-34)=-680
300x-680+9x
300x+9x-680 ( combine like terms)
Answer: 309x-680
Answer: A
Step-by-step explanation:
I hope this still helps my guy :D let me know if it does!
Mass of New student who joined the group will be :


Answer:
D. 
Step-by-step explanation:


a = 1; b = -6; c = -1





