Aconvex pentagon has interior angles with measures $x+1$, $2x$, $3x$, $4x$, and $5x-1$ degrees. what is the measure of the largest angle?

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

What is this inequality notation? t is less then or equal to 2

Issof claims that the scale factor is 1/2. which statement about his claim is correct