2) a

3) c

4) false

5) FC

6) 6

7) if you are flying

8) Old Tandys and Apples were computers, but had no hard drive

9) division

10) identity

11) AB = BC and BC = CD - Given

AB = CD - Transitive

12) 20

13) p||q - Given

angles 4 and 2 are congruent - alternate exterior angles are congruent

angles 1 and 4 are supplementary - adjacent angles are supplementary

angle 1 and 2 are supplementary - substitution

14) right triangle

15) triangles ABC and DEF are congruent and AB = BC - Given

AB = DE and BC = EF - CPCTC

DE = DF - Substitution

triangle DEF is isosceles - definition of isosceles

16)

17) angles Q and S are right angles and angles 1 and 2 are congruent - Given

PR = PR - identity

triangles PQR and RSP are congruent - HA

18) -1

19) 5

20) -1

21) -2

22) about 3.6

Take the number of questions you got correct, divide it by 22, and that is your grade percentage.