John rides his bike 68 km south and then 6 km went. How far is he from his starting point?

On a trip, you had to change your money from dollars to british pounds.  you got  560  pounds for  800  dollars.  which is a unit rate that describes the exchange

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

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68