Sorry for the sloppy drawing but this is what it will look like
I did this on Snapchat btw
Answer:
The rate of decrease is 8%
Step-by-step explanation:
we know that
The general equation for the radioactive decay can be written as:

where
a is the amount in kilograms after time t.
a_0 is the original amount of the substance or y-intercept of the function
r is the decay rate, written in decimals.
t is the time
In this problem we have

so

solve for r

Convert to percentage

Angle A measures to 59 degrees.
Answer:
i think it would be the first one
Step-by-step explanation:
not a wild guess but i am definetly not sure