Amara is raking leaves. She fills up 7 large bags with them in 3 hours. Answer the following
questions based on this information.

(a) At this rate, how many bags could she
fill in 9 hours? Justify how you found
your answer.

(b) What is the unit rate at which Amara is
raking leaves? Express your answer in
simplest form using appropriate “per”
units.