If I go out to eat and my food is $20.98 and the tax is 8.6% and I give the waiter a 15% tip how much would it be all together? Who ever answers fastest and correctly I will make brainliest
Please answer ASAP

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)

yes because they have the same amount of green and blur marbles.

step-by-step explanation: