Answer:
d. c = 100; (x – 10)²
Step-by-step explanation:
Note that (x+a)²=x²+2ax+a².
In our case, 2a=-20, so 'a' must be -10.
Since c=a², and a=-10, c=(-10²)=100.
Since a=-10, the perfect square is (x – 10)²
Might be A not sure though
here is the solution to the question
Answer:
C. 75 people
Step-by-step explanation:
50x5=250
15x5 = 75
so, 75 people
