The current population of a threatened animal species is 1.3 million, but it is declining with a half-life of 20 years. How many animals will be left in 35 years? In 60 years?

Which expression gives the area of the triangle shown below

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?