X² - 1 What is the solution of
x² + 5x+4
SO?
4 O x4 or x> 1
O x<-4 or x>-1
04

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

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Tom drove 206 miles in 3.9 hours. estimate his average speed.