What is 3z + 2 when z = 2? A 6

B 8

C 32

D 34

Help I'm not that good at math

Giving ad is congruent to bc and angle bcd is congruent to angle adc prove d e is going to ce

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why