Answer:
1470
Explanation:
4 + 3 = 7 + 7 = 14
105 × 14 = 1470
He ran 4 miles east and then 3 miles north. Since he burned calories using the diagonal line, he will burn calories from there as well. So, that's an extra 7 miles. To clarify, he burned a total of 1,470 calories on his run.