The frequency for this problem would me x2 every time you add on to the chart or go down the chart good luck:)
Answer:100
Step-by-step explanation:
Expand
x = 150 - 0.5x
Add 0.5x to both sides
x + 0.5x = 150
Simplify x + 0.5x to 1.5x
1.5x = 150
Divide both sides by 1.5
x = 150/1.5
Simplify 150/1.5 to 100
x = 100
Answer:
We are to find the error made by Sadie and then find the correct simplification.
The error Sadie made is that she wrote 
as 
instead of 
.
The square root of 
is 
and so she could have further simplified.
The correct simplification is shown below:
It would be = because they shipped the same amount in each year
The plumber worked for 5 hours because 450-200=250 which gets rid of the initial fee so 250 divided by 50 is 5
