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8-32.

What scale factor value times 6 ft would result in 5 ft? Consider the variable equation with x as the scale factor:
6 • x = 5
After isolating x, what do you get as the scale factor?

If the scale factor to change from B to A is just the reverse to change the shape back to its original form,
what would it be? Create an expression like above if necessary.

$\frac{5}{6}$

The scale factors are reciprocals.