5
3х - 10
15. х - 3x —
10
x-(3x -
3​

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)

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

it would be a on edgenuit y

the diagram below is your final answer

idk what the heck he answer is, i’m just putting this here so i finish my account