Kristina wants to prove that the base angles of any isosceles triangle are congruent.
She draws ADEF, as shown, and then draws segment EG, the angle bisector of ZE.
Use the drop-down menus below to complete Kristina's proof that base angles of an
isosceles triangles are congruent.

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?

Solve 2x+y=3 x+y=5 in substitution method