Please help me answer this one question

1=b. 2=a

Step-by-step explanation:

Since there are corresponding angles, 1 and b will be congruent, and 2 and a will be congruent.

Step-by-step explanation:

x , u are parallel lines and v is transversal.

∠1   = ∠b     {Corresponding angles}

∠2 = ∠a   {corresponding angles}

∠1 +∠a = 180   {linear pair}

∠2 +∠ b = 180  {linear pair}

∠a +∠b  = 180   {co interior angles}

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42