Your are y years old. your sister is 3 years older than you. your uncle is 4 times older than your sister. write and simplify an expression that represents your uncle's age.

4y + 12 years

Step-by-step explanation:

Your age is specified as y years.

Your sister is older than you by 3 years. Expressing sister's age mathematically, it is equal to (y + 3) years

Your uncle's age is four times your sister's age.

Hence uncle's age = \[4* (y+3)\] years

Simplifying, uncle's age = \[(4*y + 4*3)\] years

In other words, uncle's age = \[(4y + 12)\] years

Hence the required age of the uncle can be represented as 4y + 12 years.

answer:   14

step-by-step explanation:          

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