Answer:
<h2>Your answer is in picture.</h2><h3>Steps of construction: </h3>
(i) Draw a line segment AB = 7 cm.
(ii) With A as centre and radius more than half of AB, draw arcs, one on each side of AB.
(iii) With B as centre and same radius as before, draw arcs, cutting the previously drawn arcs at X and Y respectively.
(iv) Now join XY, meeting AB at O.
Thus, XY is the perpendicular bisector of AB.
Step-by-step explanation:
Hope it is helpful....
4.45 if you were trying to accurately show the decimal of acers of area halfway across the park.
The correct answer is

You can find this by first starting with the original question.

÷

Now to solve a division problem with fractions, you can always flip the second one and turn it into multiplying.

*

Now we can multiply numerator by numerator and denominator by denominator.

Then of course, we need to simplify. Since both are divisible by 3, we can divide both numbers by 3.
Actually, the real answer is "NO, BECAUSE GROUP B SHOULD BE THE CONTROL GROUP". Since Yvonne gave the flea medication to the group A, and we need a control group. If you don't know what it's the control group, it's the group that they don't put the experiment on, just to see if the group(s) being experimented, had any positive or negative changes. In a short summary they need group B to stay like they are to compare it to the experimented group (group A)
Good Luck!