The BLS reports median weekly earnings for full time workers . In 1980, weekly earnings was $259. The weekly earnings in 1980 expressed in 1983 prices is $311. In 2020, weekly earnings was $984. The weekly earnings in 2020 expressed in 1983 prices is$377.
(a) Calculate weekly earnings in 1980 expressed in 2020 prices
(b) b) Calculate average annual inflation from 1980-2020.

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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