Unit v performance task: percents (7.rp.a.3)

black friday deals
holy stone drone with live video and
adjustable wide-angle camera.

best buy

best buy is offering this drone for 20% off for
black friday.

pc richard and son

pc richard and son is offering the same drone
for 10% off plus an extra $20 off to the first 100
customers.

you only have time to go to one store. which store will give you the
cheaper price? (assume that you are one of the first 100 customers at pc

richard and son.)