PLEASE HEL THE IS ON A BIG QUIZ The expression below represents the cost, c, of an item that is 25% off c-0.25c Which expression is also equivalent to the cost of the item? A.) 1-0.75c B.)25c C.)1-0.25c D.) ).75c

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?

Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?