Lina spent 1/3 of her money. She now has $20 left. How much money did she have originally P. s it is not 60

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis. how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)