Respuesta :

5r + 8 < 63
5r < 55
  r < 11

answer

A. {r l r<11}

Answer:

[tex] {r | r<11} [/tex]

Step-by-step explanation:

[tex] 5r+8<63 [/tex]

1. As the 8 is adding, you take it to the other side to substract: [tex] 5r<63-8 [/tex]

2. Now you have: [tex] 5r<55 [/tex]

3. Since the 5 is multiplying, you take it to the other side to divide: [tex] r<55/5 [/tex]

4. Once you divide, the answer is  [tex] r<11 [/tex]