Will Give 5 stars and A thanks and And Brainliest What is the value of the expression shown below?
8 + (7 + 1) 2 ÷ 4 ⋅ 1 over 2 whole to the power of 4

7
9
21
24

21

maybe 24 but thats like a 5% ye

Step-by-step explanation:

cuz its jus is

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)