Dinosaurs have been extinct for about 6.5 x 10^7 years while neanderthals

What is the length of bc ? enter your answer in the box.bc =

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?