In a class 60% of the students are girls. there are 18 girls in the class. how many students are in the class

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

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

Hi, can anyone show me how to do this problem? 100 points for this. in advance