drawing isn't shown, pls take a screenshot or photograph the exercise
I'm kind of thrown off for that negative sign, but I try it out in the one that makes sense is this one [ https://gyazo.com/192a76e70d2d46979691cabbf06e6c85 ] If you can better of explain where the negative sign will be great. Hope I helped.
Answer:
there will be 537 items in the library
Step-by-step explanation:
Well 1 percent is 0.9, so an easy way to work it out:
100(0.9)=90
10(0.9)=9
90+9=99.
I think the answer that u r looking for is C
