If point (4, 5) is on the graph of a function, which equation must be true? f(5) = 4
f(5.4) = 9
f(4) = 5.
f(5.4) = 1

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

State if the two triangles are congruent. if they are, state how you know?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?