18. in the diagram, parallel lines b and care cut by transversal t, with mz1 = 114. find the measures of the other seven angles.

Having a hard time understanding this question (see attachment).

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.