Astore is having a sale on walnuts and chocolate chips. for 5 pounds of walnuts and 3 pounds of chocolate chips, the total cost is $17 . for 2 pounds of walnuts and 12 pounds of chocolate chips, the total cost is $23 . find the cost for each pound of walnuts and each pound of chocolate chips.

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

Based on the figures as marked, /\rqs = —

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2