Aprofessor drove from denver to boulder during rush hour at an average speed of 3030miles per hour, and then drove back the same way at an average speed of 4545miles per hour. if the round trip took 1 hour and 45 minutes, how many miles is the professor's one-way trip from denver to boulder

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

stop cheating

step-by-step explanation: