A2 = hours [hh]:mm:ss (this is the result of another formula)
B2 = the number 1, 2, 3, or 4

What I need is:

If b2 = 1 and a2 is less than or equal to 4 (hours) return met target
If b2 = 1 and a2 is greater than 4, but less than 6 return warning
if b2 = 1 and a2 is greater than 6 return alert
if b2 = 2 and a2 is less than or equal to 9 return met target
if b2 = 2 and a2 is greater than 9 but less than 13.5 return warning
if b2 = 2 and a2 is greater than 13.5 return alert
if b2 = 3 and a2 is less than or equal to 27 return met target
if b2 = 3 and a2 is greater than 27 but less than 45 return warning
if b2 = 2 and a2 is greater than 45 return alert
if b2 = 4 return n/a

I have tried a bunch of different things (if/and/or/lookups) and nothing
works. Please help... trying to meet a deadline.

Thanks