Solve: 5m - 10 = 20 The first step is: [ Select ] = [ Select ] This results in: [ Select ] = [ Select ] The second step is: [ Select ] = [ Select ] The solution is: [ Select ] = [ Select ]

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

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: