Answer:
you subtracted 2y from both sides to each side getting 2y = 10x +8
Step-by-step explanation
I and III seem to be correct, II doesn't because, for example, if x = w = z = t = 70 and y = u = 40, then all three pairs of vertical angles in the figure have equal measure and the given condition x + y = u + w stands. But it means y is not equal to w.
The 20% statement is useless
80% of $295 is what?
80%×295=??
.80 × 295 = $236.00 in savings