Situation: Find the age of the spear head to the nearest
year.
An archaelogist in Turkey discovers a
spear head that contains 80% of its
original amount of C-14.
Enter the correct answer.
N = Noekt
DONE
OOO
No = inital amount of C-14 (at time
t = 0)
N = amount of C-14 at time t
k = 0.0001
t = time, in years

Evaluate the following expression 1/3^2

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers