3 + 3x + 2<span>x^2 </span>+ <span><span>x^2/</span>2
</span>Hope this helps :3
Answer:

Step-by-step explanation:
We are given that
Width of rectangle=b=2.1 cm
Length of rectangle=l=5.6 cm
We have to find the area of rectangle.
We know that
Area of rectangle=
Using the formula
Area of rectangle =
Area of rectangle=
Hence, the area of rectangle=
I think the answer is 1.5?
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!