Chanita wants to swim the 21-mile english channel in 48 hours. on the first day she swam 9 miles and then was picked up by a ferry to spend the night. the next day, she has 12 hours of daylight to complete the remaining distance. what inequality represents the minimum rate she has to swim on the second day to complete the distance? the inequality is 9 +

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

Explain how you divide powers with like bases.discuss why the bases have to be the same.how are these rules similar to the rules for multiplying powers with like bases.

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