(a) name a pair of complementary angles. (b) name two supplementary angle pairs. (c) solve for each of the unknowns. show your work.

bc  cd  

ab   bd

2x+40=90

2x=50

X=25

5y+2(25)+40=180

5y+90=180

5y=90

y=18

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in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

i believe the answer is the polygon, heptagon.