21 + 28 = 49 students
Ration of history 21 to students 49 = d)21:49
To calculate area of a Square you'll take a side and square it for example
48ft of fence
48/4=12
Now you'll square
12ft^2
I hope this works...
Answer:
0,0215
Step-by-step explanation:
Answer:
4=4
Step-by-step explanation: