Answer:
Step-by-step explanation:
3.7 × 107 = 395.9
5.0 × 106 = 530
530 - 395.9 = 134.10
531 in^2
21 x 18 = 378 in^2
17 x 9 = 153 in^2
378 + 153 = 531 in^2
5
21-6=15/3=5
11.68-0.48
= 11.20
11.20÷1.6
= 7.0 or 7
ahh this is the correct answer.
so if it helps don't forget to like and Mark me.
32