These are the answers, if it is blurry I can retake the picture but I hope this helped.
Well I really can't explain but the answer is 0.32 square millimeters...so sorry if this didn't help.
<span> there are </span><span>333 positive integers less than 1000 that are not divisible by 5
</span>
V = 20√(273 + t )
when v = 329
∴ 329 = 20 √(273 + t )
∴ √(273 + t ) = 329/20 = 16.45
273 + t = 16.45² = 270.6025
∴ t = -2.3975 ≈ -2 (<span> Rounded to the nearest degree )
</span>See the attached figure for graphic solution
5. x^2+3x+15+40/x-3
6. x^2+4x+9+22/2x-3
7. yes it is a factor