A recipe for making 54 biscuits requires 9 cups of biscuit mix. Using this recipe, how many cups of biscuit mix will be needed to make 18 biscuits?
O A 2 cups
O B. 3 cups
C. 4 cups
D. 6 cups

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

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Which of the following parabolas opens up?