Santina measured the amount of sugar in four containers 20 ounces 16 ounces 1 pound and 12 ounces how much sugar in the four containers combined

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)