Jeremy has 2 brothers and 3 sisters. His brothers are 1 year younger and 4 years younger than him. His sisters are 1 year, 4 years, and 6 years older than him. Jeremy is 9 years old. What is the median age of Jeremy and his brothers and sisters?

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

Which expression gives the exact value of x?

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?