Janine is considering buying a water filter and a reusable water bottle rather than buying bottled water. Will doing so save her money?

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.