Joelle can read 3 pages in 4 minutes, than means 3/4 = 0.75 pages per minute
4.5 pages in 6 minutes = 4.5/6 = 0.75 pages per minute
6 pages in 8 minutes = 6/8 = 0.75 pages per minute
The rate is contant and is equal to 0.75 pages per minute
Answer:
0.75 pages per minute
