Answer:
The rate of markdown it would have to offer is 27.3%.
Step-by-step explanation:
The original price of sofa was, OP = $880.
The new price of sofa is, NP = $640
The change in price is:

The rate of markdown offered by the shopkeeper is:

Thus, the rate of markdown offered by the shopkeeper is 27.3%.
Y=2.5 and if u need me to explain i will be glad to
Answer C (-8,0)
because the line crosses the x-intercept (the horizontal line)
It should be $109 for the bike because if u divide 327 by 3 it equals 109.
The golden ratio is the next number equals the sum of the last to example listed