Explain why the greatest common factor of two numbers is sometimes 1

An angle that measures between 90 and 180° is called a(,

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

The graph shows the distance kerri drives on a trip. what is kerri's speed . a. 25 b.75 c.60 d.50