A shop has a slae that offers 20% off all prices On the final day they reduce all the sale prices by 25% Linz buys a radio on the final day Work out the overall percentage reduction on the price of the radio

40%

Step-by-step explanation:

We would use an example

assume the price of the radio is 100

After the initial price reduction, it would be worth (100 - 20%) 80% of the price

0.8 x 100 = 80

After second price reduction it would be worth (100 - 25% ) 75% of the price

0.75 x 80 = 60

Price change = (new price after all the discounts / original price) - 1

(60/100) - 1 = -0.4

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

source