What is the solution to this liner equation d-10-2d+7=8+d-10

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?