7dvided by 285
3 divided by 451
8 divided by404
6 divided by 485
3 divided by362
7 divided by 216
6 divided by 781
3 divided by 391
8 divided by 563
7 divided 143
5 divided 514
3 divided 721

1.) 40 R 5

2.) 150 R 1

3.) 50 R 4

4.) 80 R 5

5.) 120 R 2

6.) 30 R 6

7.) 130 R 1

8.) 130 R 1

9.) 70 R 3

10.) 20 R 3

11.) 102 R 4

12.) 240 R 1

answer: 819.89 miles across america

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,