You push your younger sister on a swing one time and then allow your sister to
swing freely. On the first swing, your sister travels a distance of 8 feet. On each
successive swing, your sister travels 80% of the distance of the previous swing.
What is the total distance your sister swings?

your answer is 23/2 - 13.5

step-by-step explanation:

7/2 evaluates to

multiply x and 4.5

multiply x and 1

the x just gets copied along.

the answer is x

x

4.5*x evaluates to 4.5x

multiply 3 and 4.5x

multiply 1 and x

the x just gets copied along.

x

4.5*x*3 evaluates to 13.5x

7/2-4.5*x*3 evaluates to

  + 8 =

the answer is

7/2-4.5*x*3+8 evaluates to

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b

step-by-step explanation:

b