James is given the diagram below and asked to prove that angle D= angle F. What
would be the missing step of the proof?
Given: DE = FE, and EO forms the angle bisector of DEF.
Prove: angle D = angle F

2x+3y=12 x-y=6 solve the following system equations

Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y

Out of the 150 students at a summer camp, 72 signed up for canoeing. there were 23 students who signed up for trekking, and 13 of those students also signed up for canoeing. use a two-way table to organize the information and answer the following question: approximately what percentage of students signed up for neither canoeing nor trekking?