Aradioactive substance decays according to a=a0e−0.0036t, where a0 is the initial amount and t is the time in years. if a0=480 grams, find the time for the radioactive substance to decay to 147 grams. round your answer to two decimal places, if necessary.

3/6   and 9/18

step-by-step explanation:

entering that problem on the tube might get you an answer

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

choose (5, 1.5) and (-1.5,-3.5)

step-by-step explanation:

5 - 1.5 =3.5

-1.5 - (-3.5) = 2

3.5 + 2 =5.5

hope this !