Answer:
0.67!
Step-by-step explanation:
0.6 is just 0.60 which is less than 0.67
You can divide the whole expression by -3:

Recalling that

Let's compare the middle term:

So, we want to complete

Which differs from
by 16. So, if we add 16 to both sides, we have

16*7.96=127.36
127.36ft of steel will be required.
9. 10^42
10. 59049 x 2^36
11. 12^28
12. 1.85302019 x 10^15
13. 2^11
14. 1/2
15. -1