sale price of 18.90 markdowns 25 percent find ammount in markdown as well as original price really need this question to pass asap

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?

Which number line represents the solution set for the inequality -1/2x> 24?

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?