Answer:3
Step-by-step explanation:because from cm to km you have to divide by 100,000 to get km from cm so 300,000/100,000=3
Answer:

Step-by-step explanation:
Rewrite the quadratic using the method of completing the square:

From this form it is immediately clear that the vertex of the parabola is at x=1 and its y-intercept at -6.
A.
let the number be n.
2n+5=45
2n=40
n=20
D
Because to cancel out division you use multiplication
Answer:
130
Step-by-step explanation: