A toothpaste advertises that 30% of stains are removed after 1 week. As Alexa is brushing her teeth, she thinks "after 2 weeks, 60% of stains will be gone, and 90% after three weeks". Using this reasoning, what percent of stains will be gone after four weeks? Does this result make sense? Why or why not?

120%. doesn't make sense because there's nothing above 100%

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)