Question

Riley is 3 years older than his sister. Which of the following expressions shows the sum of their ages if s represents Riley's sister's age? @agent0smith

Answer 1

R for Riley and S for his sister, since Riley is 3 years older, you have to add three to his sister's age

R = S + 3

Answer 2

Would the expression be 2s+3?

Answer 3

In algerbraic terms? @agent0smith

Answer 4

Yes, the sum of their ages is

s + s + 3 or 2s +3

Answer 5

yes. finally I figured it out