Answer:
3 x 10 = 30 man-days per house
The question is a little blurry. I can't read it.
<u>Answer-</u>

<u>Solution-</u>
Rational Root Theorem-

All the potential rational roots are,

The given polynomial is,

Here,

The potential rational roots are,


From, the given options only
satisfies.
The answer is f(x) will eventually exceed g(x) because f(x) is an exponential function.
A triangle with sides measuring 300, 400 and 700 because 300+400+700=1400 which is higher than the first triangle 300+400+500=1200