Question 2 of 9 Which of the expressions are equivalent to the one below? Check all that
apply.
6. (2 + 8)
A. (8 + 2).6
B. 6. (8 + 2)
OC. 6. 2+ 6.8
O D. (6. 2) + 8

A, B, and C

Step-by-step explanation:

6*(2+8)=60

6*(8+2)=60

6*2+6*8=60

(6*2)+8=20

.mp4 files, because, video

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)