Shape a is congruent to shape because a 180° rotation about the origin and then a translation unit(s) right maps shape a onto it.
shape b is congruent to shape because a 90° clockwise rotation about the origin and then a translation unit(s) left maps shape b onto it.

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step-by-step explanation:

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answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.