S = total # of students / #of students in each group
So you can do, s= t/g
Overall, the answer is 4 students per group
C... simply because Vertical angles are angles opposite to each other (and they are congruent)
Answer:
229.5
Step-by-step explanation:
In order to calculate the area of the arrow we need to calculate the area of the body of the arrow, and then the head of the arrow. The body of the arrow is a rectangle meaning that the area (Ar) can be calculated by multiplying the length by the height like so...
Ar = l * h
Ar = 11cm * 12cm
Ar = 132 
Now we need to find the area of the head of the arrow, which is a triangle and therefore we can use the formula for the area of a triangle (At) which is height times base divided by 2...
At = 
At = 
At = 
At = 97.5
Now we simply add both areas together to calculate the total area of the arrow...
132
+ 97.5
= 229.5
One days trip of to school from home and back home from school is 2/3 of a mile. We want to know how far it is to school from her house.
To solve this, we simply need to take half of the total distance (2/3)

Next, we need to turn the 2 into a fraction. Every whole number can be made into a fraction by putting it over 1.

Because we are dividing, we need to invert the second fraction and then multiply.

Next, we multiply the top of the first fraction by the top of the second and the bottom of the first fraction by the bottom of the second.

Once you reduce, you get: