Respuesta :

noelleista

Answer:

r < 19

Step-by-step explanation:

Equation:

r – 18 – 2 < –1

Subtract:

r – 18 – 2 < –1

r - 20 < -1

Add:

r - 20 < -1

  +20   +20

r < 19

Therefore, r is less than 19.