Radioactive isotope #1
has been kept for 12.5 years. Originally, there were 20 grams and now there are 19.808 grams.
What is the half-life?
When will there be 1 gram left?
Round rate to 8 decimals.

on your paper it doesn't say the answer but the the answer is altitude

step-by-step explanation:

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

b. 2 and 4

step-by-step explanation:

they used 313 gallons of paint