ITS Sys Admin Pat is dealing with a computer virus outbreak. Pat esti- mates that every second at least 1 uninfected computer becomes infected for every 5 computers already infected on campus. To be exact there will be (C/5 newly infected computers in the next second if there are currently C infected computers. Pat is able to disinfect at most 10 computers per second. If Pat knows that there are at least 60 infected computers now, prove by induction that in n seconds there will be at least 12 6 10 + 50 infected computers. 5

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.