Katie is selling lemonde for $1.50 per cup. she decides to put them on sale for .90.what percent discount did she give on her lemonade?

Katie gave a 40% discount on her lemonade

You do 0.6÷1.50×100 this should equal 40. So the answer is 40%

The east side of the west are the roll call managers

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle