SOLUTION: A painting is being sold at a discount of 35% off the $800 original price. If a sale tax of 8.685% is applied. A) Find the final price of painting B) Find the rate of change in the

Question 935099: A painting is being sold at a discount of 35% off the $800 original price. If a sale tax of 8.685% is applied. A) Find the final price of painting B) Find the rate of change in the price of this painting if it was priced for $950 3 years ago.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
A:
(1 - 0.35)*800*1.08685 = 565.16
sale price including tax = $565.16
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B:
r = dq/dt
r = ( 950 - (1 - 0.35)*800 )/3
r = 143.33 dollars/year
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