Question

I need help with math

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

i think b but idk help please let me know the right answer

Answer 1

The answer is A. Jonna's brother's age is b so her age is b+4. The sum of their ages would be b+b+4 which equals 2b+4