Which number is a prime number? a. 3 b. 4 c. 8 d. 12

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25