Chocolate bars that normally cost 80 cents each were sold of 40 cents each during a sale. what is the percent decrease in price during the sale?

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees. (10 points)

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1