I NEED HELP WITH THESE TWO QUESTIONS! 1.9(4x+5y+3z)+7x-4y+4z
2.3(6x{2}y+2xy{2})+2(8xy{2}-5x{2}y)
IT SAYS TO SIMPLIFY AND FIND AN EQUVIALENT EXPRESSION FOR EACH EXPRESSION GIVEN! SHOW ALL WORK!!
I WILL GIVE BRAINLIEST!!!

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.

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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

if im not mistaking its

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roots are from trees

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no its the same as every other grade

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