Store reduces an item 20% after 3 weeks if unsold a further 30% if unsold after 6 weeks and after 7 weeks a further 10% estimate the price after 8 weeks price of coat 289.50

after 8 weeks its $146sales tax is $154.66

Step-by-step explanation:

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

the answer is two. hope this !