28 days
If you are looking for how many days are in four weeks then 28.
She makes 20 observations in all, because there are 5 groups with 4 students in each group. 5x4=20
This answer is 41
9 divided by 3
+8
x 5
-2
So, you already know that angle CBD is 68 degrees, and the complementary angle to angle CBD is angle CBA. These angles together make 180 degrees because segment DBA is a straight line consisting of angles CBD and CBA. 180-68(the angle you already know) is 112 degrees for angle CBA. Then you repeat this process to find the other angles
It is (2/3d)^3
Make sure the exponent is on the outside. This is because you are raising 2/3d. Not just D
