The answer is A. 41 because it is in the middle of the box.
So the original lawn has an area
24 × 32 = 768 the new lawn will have area 425
this means the area of the sidewalk will be 768-425=343
now the sidewalk is a certain width of we draw it out and label it x we see the lawn has an area of

use the quadratic formula to solve. then you will know how wide the sidewalk is. I will attach picture
<span>x = 3 x = -3<span> x= 0.0000 - 1.0000 i
</span><span> x= 0.0000 + 1.0000 <span>i </span></span></span>
What you can do is start with the key details in it... the main ones are that the bacteria grows every 30 minutes, you start with 1 bacteria, and the end time is 180 minutes. Basically you know that 3 goes into 18 6 times so 30 goes into 180 6 times which means that if you started with 1 bacteria you will end up with 7. Understand?
Marcus went above his budget as 25% percent of his allowance would be $5, and he went $2.42 over.