Polygon ABCD is a preimage of an enlargement with a scale factor of 3 and a total area of 4. What is the total area of the enlarged image?

Which is an equation for the nth terms of the sequence 12,15,18,21

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

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.