C. 100 is the aswer i thinck
X = number of days it would take Kate to paint the house by herself. .
<span>x+5 = number of days it would take Jean to paint the house by herself.</span>
<span>Together, they paint the house in 6 days: </span>
<span>1/x + 1/(x+5) = 1/6 </span>
<span>Multiply both sides by 6x(x+5) </span>
<span>6(x+5) + 6x = x(x+5) </span>
<span>12x + 30 = x^2 + 5x </span>
<span>x^2 − 7x − 30 = 0
</span>therefore the answer is A.
so 21 - 13, the money will be invested for 8 years.

Hi the answer is 60 but the picture will show you the work!!
Answer:
In a year she will pay $900
The cost of the installation and a month would be $225
The cost of a year and installation would be $1,080
Step-by-step explanation:
</3 PureBeauty