You did not give the options.
the inequality would be
22> .75 (7) + 1.25 (b)
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this simplifies to 22 > 5.25 + 1.25(b)
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You subtract 5.25 from both sides to get
16.75>1.25b
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Divide both sides by 1.25 to get b by itself
to get
13.4> b
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This means that she can buy at most 13 bottles because you cannot buy part of a bottle
So the equation is 13>b
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The number of bottles she can buy is at most 13
P.S Dash under greater than sign it won't let me type it
I am not positive on this but I believe the answer is 600/15 because you can then accurately see how many feet the submarine rises per hour.
A
100+89.50×36
=3,322
b
3,322−2,900
=422
c
2,900÷89.50
=33
You would just add them both together witch would make 18 for the third side