Three numbers add up to 147. The smallest number is half the middle number, which is half the largest number. What are the three numbers? Show evidence

x=21

y=42

z=84

Step-by-step explanation:

let the smallest number be x middle number be y and largest number be z

then according to question

y=z/2,

x=y/2

then x=z/4

also

x+y+z = 147

z/4 + z/2 + z=147

7z=588

z=84

therefore

x=21

y=42

z=84

452,489 to the nearest thousand is 452,000

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.