Arecent review of a compact disc distributor’s product line is summarized as follows: selling price ($) number of titles midpoint 0 to under 5 51 2.5 5 to under 10 184 7.5 10 to under 15 241 12.5 15 to under 20 1468 17.5 20 to under 25 1339 22.5 25 to under 30 255 27.5 30 to under 35 98 32.5 35 to under 40 14 37.5 i'm supposed to prove that the median is $19.59 but i can only get 20

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