Will give brainliest 25 000 cm (the last zero has a line above it)
x 500 cm
12,500,000 cm2
12,500,000 x 101 cm2
0.00125 x 103 cm2
125.0 x 105 cm2
1 x 107 cm2

im not really sure what the question is or what needs to be solved but if this is what you need to find

Option A -  

Step-by-step explanation:

Given : Expression

To find : The solution of the expression ?

Solution :

the bar means the estimated number.

So, We simply multiply the numbers by the estimated number,

Therefore, Option A is correct.

21

step-by-step explanation:

11279

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3