If the factors of a quadratic function are (x + 2) and (x -9), what are the x-intercepts of the funct
O A. (2,0) and (9,0)
B. (-9,0) and (2,0)
C. (-9,0) and (-2,0)
OD. (-2,0) and (9,0)
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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

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Factor and solve to find roots x squared -x - 90 =0