Liu Tse is 6 years older than four times the age of her daughter, Lan. Lan will be 9 years old in 3 years. PART A:
Write and evaluate an expression that shows Lan's age.

PART B:
Use Lan's age to write and evaluate the expression for Liu Tse's age

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)

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

it shoild be o

step-by-step explanation: