The y intercept of the function is 700. And you are correct with the other one
Apos 3 horas de tratamento a estirpe "A" já deve ter sido combatida com total eficácia, enquanto que a estirpe "B" deve levar cerca de 2 horas para chegar ao mesmo resultado!
The answer is C just trust me
14 bags of fertilizer are needed
<em><u>Solution:</u></em>
Given that You need to buy fertilizer for a circular flower bed with a diameter
of 13 feet
Diameter = 13 feet


Therefore radius of circular flower bed is 6.5 feet
<em><u>Area of circle is given as:</u></em>

Substitute r = 6.5

Given that one bag will fertilize 10 square feet
1 bag = 10 square feet
Then number of bags needed are:

Thus approximately 14 bags of fertilizer are needed