4. If m23 = 54º, find the measure of each missing angle.

m27=

km212 =

12

1114

a. m21 -

b. m22 =

13

m 28

I. m

13 =

c. m24 =

1. m29

m. m214 =

d. m25 =

m210 =

e. m26 =

j. m211 =

Simplify: 2x^-4/3xy a. 4/x^3y^6 b. 4x^3y^2/3 c. 4y^2 d. 2/3x^5y

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Round 8923 to the thousand

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