Answer:
Darnell can read 1,715 words in 7 minutes
Step by step Explanation:
1. I need to find out how many words he reads in 1 minute. Divide 735 by 3, my answer is 245
 245
 ______
3)735
 6 bring down the 3 to make 13
-_____
 1 3
 12 bring down the 5 to make 15
-______
 1 5
 15
___________
 0
2. multiply 735 by 2 cause he reads 735 words in 3 minutes and we are tryna find out how many words he reads in 7 minutes. 3×2=6, so 735+735 (735×2) equals 1470 
3. Add 245, for that extra minute that we missed. my answer is 1,715 words in 7 minutes