Aflu outbreak occurred in a military barracks that housed 20 soldiers. case a began on october 1 and case b was diagnosed on october 2. after approximately 10 days, 12 additional cases occurred during approximately a one-week time span. military epidemiologists believed that this second group cases represented the same generations of cases, and was in the second incubation period after the occurrence of cases a and b; none of the 20 soldiers was known to be immune. calculate the secondary attack rate using the foregoing information.

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?

Which ordered pair is a solution of the equation? 2x+3y=10

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.