Elias has read 18 pages of a book. He will continue to read at an average rate of 4 5 5 4 page per minute. The total number of
pages (p) Elias reads after m minutes can be represented by the equation p = 4 5 m + 18 p= 5 4 m+18. How many minutes will it take Elias to read a total of 39 pages?