Well, if both Alexis and Tara mine salt for 40 hours... they'd have mine 1,000 pounds of salt. Is this what you were looking for?
I still have absolutely no idea how it got that answer. Just move on and accept that the answer is still wrong no matter what
1)16^2 or 4^4
2)3^2
3)4^2
4)5^2
5)15^2
6)14^2
$30 + $7x is greater than or equal to $205
