Answer:
The solved given fractional expression is 
Therefore the given fractional expression becomes

Step-by-step explanation:
Given fractional expression is 
To solve the given fractional expression as below :

( here taking the term 3 as LCM )
( by adding the sums here )


Therefore the solved given fractional expression is 
Therefore the given fractional expression becomes

The solved given fractional expression is 
Answer:
The length of the border is approximately 4 feet.
Step-by-step explanation:
Since the garden has a circular border we can apply the formula for the circle's length, which is shown below:

Where the radius is half the diameter. The diameter is the distance between two points in the circle going through the center, therefore for this garden the diameter is 1.2 feet and the radius is 0.6 feet. Applying this to the formula gives us:

The length of the border is approximately 4 feet.
The work is incorrect.
(-6) multiplies both terms inside parentheses. For some reason, the student changed the sign of that multiplier for the second term. The second term of the result should have a positive sign, the result of multiplying (-6)(-2/13) = +12/13.
10 cupcakes in total
1/5 of 10 is 2/10 so 2 cupcakes are chocolate
2*0.45=$0.90
Dora spent $0.90 on chocolate cupcakes