Answer:
14.42
Step-by-step explanation:
17.00 x .80 20% off means price is 80% (or .80) of price
=13.6
13.6 x .06 = .82 sales tax
13.60 + .82 = 14.42 sales price plus sales tax
You want the average?
add them all together and then divided by the number of events
-4/5+9/20=-16/20+9/20=-7/20
20 - 2n
Difference means taking away
Two times a number means whatever n is it is multiples by 2 and subtracted from 20
