hi, I kinda know what I'm doing, however, I'm not smart enough to make seem like I have an idea of what's happening...please help me form words. uh anyway you're supposed to write the key difference and obviously, it's basically the same thing but flipped ( but also I like to overthink thing and go " well it is flipped but the one looks wider so id. k that could be one too but it says difference, not differences so maybe not but you never know" ... good times )

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily

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?