The tenth-grade teachers at Washington High School are getting ready for the new school year, so they want to decorate the 5 large bulletin boards in the hallway outside their
classrooms. They plan to use 8 yards of border for each bulletin board. If border is sold in 40-
foot rolls, how many rolls will the teachers use?
Write your answer as a whole number, decimal, or simplified fraction. Do not
round.

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

Sam is picking fruit from a basket that contains many different kinds of fruit. which set of events is independent?

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old