The sum of the interior angles of the triangle is 180°. Interior angle A is congruent to the alternate interior (with respect to the parallel lines) angle marked 2x at E. The interior angles at B and E are the supplements of the exterior angles at those points.
1. <span>-0.9x+2.8=4.1 First subtract 2.8 from both sides. -0.9x = 1.3 Now divide both sides by -0.9. x = -1.4444.. This can be rounded to -1.44 </span><span>c) -1.44
2. Jordan has 650 pennies. He'll give 85 to his brother and split the rest with his sister. </span>d) 85+2x=650
