Prove or disprove each of the following using truth tables: (a) [p --> (q + r)] --> [(p --> 9) --> (p --> 1)] (b) (p 1--> 9) --> (p 9)

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Which strategy is used by public health to reduce the incidence of food poisoning?

Ithink i know it but i want to be sure so can you me out ?