She reads at 55 pages per hour for 4 hours so 55*4 = 220 pages so far. This means that she read 220 and had 330 left so 220 + 330 = 550 so the book is 550 pages. If she reads 55 pages per hour and there is a total of 550 pages, 550/55 = 10 hours to read the book.
Answer:
angle-side-angle. that's my answer
Chris is correct.
An octagon has 8 sides.
A hexagon has 6 sides which is what Lin said.