This week is representative of how many hours ricki will work each week during the summer. if she earns $9 per hour and there are 12 weeks during her summer vacation. what will ricki's gross earnings be? day | hours worked
monday | 4

tuesday | 0

wenday | 5

thursday | 5

friday | 0

saturday | 3

sunday | 3

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

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?