Question

Which answer choice is an expression that represents Melissa's age in 9 years, when the variable a represents her current age?

Answer 1

a + 9

Explanation:

Given that :

Melissa's current age = a

Melissa's age in 9 years will be will be expressed as :

Melissa's current age + number of years from present time

Thus ;

Expression to represent Melissa's age in 9 will be :

a + 9

Thus ;

Melissa's in 9 years = a + 9