It is shown that he goes down in a slower time than he does going up.
Answer:
Follows are the solution to the given points:
Step-by-step explanation:
Given:

For point A:

For point B:

For point C:

For point D:

Answer:12
Step-by-step explanation:
60 times 20 = 1200 1200 divided by 100 = 12
To solve this we are going to use the half life equation

Where:

is the initial sample

is the time in years

is the half life of the substance

is the remainder quantity after

years
From the problem we know that:



Lets replace those values in our equation to find

:




We can conclude that after 1600 years of radioactive decay, the mass of the 100-gram sample will be
91.7 grams.
Multiply the original price by the percent of markup: 47x.045=2.115. Round: 2.115=2.12. Add original price and amount of markup: 47+2.12=49.12. Answer: $49.12 :)