What is 38.25 rounded to the correct significant digits?

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?