Answer:
+-+
Step-by-step explanation:
C. 1,300
I cant see the expression but i got 1,100 by finding out what 80% of 1500 is by multiplying 1500 by 0.8 to get 1,200. Then add the 100 that you have to pay for the membership +to get a total of $1,300. hop dat dis iz help fuuull
Answer:
An old bone contains 80% of its original carbon-14 in 1844.6479 years
Step-by-step explanation:
We know that
half life time of C-14 is 5730 years
so, h=5730
now, we can use formula

we can plug back h
and we get

An old bone contains 80% of its original carbon-14
so,
P(t)=0.80Po
we can plug it and then we solve for t





So,
An old bone contains 80% of its original carbon-14 in 1844.6479 years
14q-35 distribute the -7 to the other numbers
3x-y=-10 is the simplified form