The answer to the first part is 172 plants per row with a remainder of 3 plants The answer to the second part is, Martin knows that 7 goes into 700 100 times, 7 goes into 490 70 times, and 7 goes into 17 twice with a remainder of 3. He then adds 100 70 and 2 together to get 172 with a remainder of 3.
D) 150 miles ~ because when you multiply 150 miles by 30 cents every mile you get 45 which you add to the $20 a day fee you reach $65 which is equal to the $65 of Agency A