Which of the following is not a polynomial identity? A. (a^2 + b^2)(c^2 - d^2) = (ac - be)^2 + (ad + bc)

B. a^3 - b^3 = (a - b)(a^2 + ab +b^2)

C. a^2 - b^2 = (a + b)(a - b)

D. (a + b)^2 = a^2 + 2ab+ b^2

Pls , the question is in the picture!

Jordan rides his bike 6 7/15 miles every day to deliver newspapers and to go to and from school. if his ride to and from school is 4 3/10 miles, how many miles is the trip to deliver newspapers? 1 1/3 1 1/6 2 1/6 2 4/5

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