Plan 1 because she spends 435.88 more if she goes with plan 2
The submarine would be 1,620 ft if i’m understanding the question correctly
6 then thousandths=60,000
1 more thousandth then 10,000=11,000
No hundreths=000
3 more tens then 10,000=40,000
And 4 fewer ones than 10,000=9,996
Add that all together and you get 121, 996
101.66 ÷ 4.42 = 23 square feet