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HELP!!!!!

Jonna is 4 years older than her brother. Which of the following expressions shows the sum of their ages if b represents Jonna's brother's age?

A: 2b + 4
B: b + 4
C: 2(b + 4)
D: 4b

Respuesta :

The answer is A, since the equation j = 4 + b can be used to represent Jonna's age. You then add that to b (the brother's age) to get the sum of the two, which yields 2b + 4.
The Answer: A
because 2b represents how much older she is than her brother

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