Answer:
hello :
Step-by-step explanation:
x(x+3)(x+3)=0 means : x=0 or x+3=0 or x+3=0
x=0 or x=-3 or x=3
2cm
On a scale of 1 to 50, her bedroom door would be 100cm divided by 50 which is 2cm
3.5555 (5 repeating)