8 is the hundreds, 7 in the tens, and 3 in the ones
The answer is 2520 degrees
The slope is 0 and the equation is y = -2
Answer:

Step-by-step explanation:
We know that 

= -4i+6+2
=8-4i
Answer:
A = 502 * e^-(.033 * 68) amount left after 68 rears
A = 502 e^-2.244 = 53.2 grams after 68 years
A2 = 502 e^-(.033 * T) = 251 where T is time for 1 half-life
ln (1/2) = -(.033 * T)
T = -.693 / -.033 = 21.0 years for the half-life