You have 2,088 grams of a radioactive kind of xenon. how much will be left after 18 hours if its half-life is 9 hours? so idk.. 18 divied by 9 then.. idk

After 9 hours there will be 2088 / 2 = 1044 grams left

After another 9 hours ( total of 18 hours) there  will be 1044 / 2

= 522 grams left

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

i really dont know

step-by-step explanation: