At Blooming Gardens nursery, they are currently running the following promotion: Buy three trees of the same kind at the regular
price and get the fourth at 80% off. Jocelyn is needing some trees for her backyard and decided to buy four red oak trees using the promotion. The regular price for a red oak tree is $390.00. Based on a tax rate of 8.25%, Jocelyn ended up saving $ by using the promotion.
Regular price is 4 times 390=1560 tax=8.25% 1560 times 0.0825=128.7 add that 1560+128.7=1688.7 is price if didn't use promotion
if deal then 3 normall trees+1 that is 80% off find the 4th tree 390 times 0.80=312 off 390-312=78 3 normal trees+78=3 times 390+78=1248 find the tax 0.0825 times 1248=102.96 add 1248+102.96=1350.96
compare prices
1688.7 no promotion 1350.96 with promotion subtract 1688.7-1350.96=337.74
