Respuesta :

hurryburning

Answer:

a = 6

Step-by-step explanation:

(3.14 * 18) * 17.5 = 3.14 * (3a * 17.5)

3.14(3x * 17.5) = (3.14 * 18) * 17.5

3.14(3a * 17.5) = 3.14 * 18 * 17.5

3.14(3a * 17.5) = 989.1

3.14 * 3a * 17.5 * 100 = 989.1 * 100

16485a = 98910

a = 98910/16485

a = 6