Surface area of a cylinder=area of 2 bases+area of around cylinder
area of bases=area of circle os 2 times pi times r^2
area of around=circunferenc of circle times height of cylnder=2 timespi timer r times height so 2pirh
so add
area of bases+area around=2pir^2+2pirh
not sure what standard form is
so he answer is
2pi(r^2)+2pi(r)(h)
.91 times 4000=3640 people prefer Pedro’s
4000-3640= 360 people prefer other brands
8 + 5 = 13
10 + 3 = 13
i think thats what you asking right
