Answer:
A
Step-by-step explanation:
you just foil them together and get that
19/24m-1/3
1/6m-(-5/8m+1/3)=1/6m+5/8m-1/3=4/24m+15/24m-1/3=19/24m-1/3
Answer: just put c
C is always correct
4.9x10^4
4.9*10000=49,000