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Corresponding

congruent interior

equation 9x+8=4x+18

angle measure 26

Explanation:

9x+8=4x+18

-4x   = -4x

5x+8=18

-8    = -8

5x=10

x=10/5

x=2

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so... now plug in 9(2)+8 = 18+8=26degrees

to confirm the angle should be the same for the next one

4x+18=26

solve for x

26-18=4x

8=4x

8/4=x

2=x

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8