Answer:
Step-by-step explanation:
basicallyi you want to find a common denominator before you add them up. the common denominator in this case would be 20, since it's the first common multiple all of them share
50/20 plus 72/20 plus 55/20
177/20 would be your answer
Step-by-step explanation:
area of square = l^2
so 10^2
100cm^2
The value of this answer is .B
