Respuesta :

Answer:

There are 21.4285714 (21 or 22) questions

Step-by-step explanation:

15 / 70% = 21.4285714

21.4285714 * 70% = 15

21 * 70% = 14.7

22 * 70 = 15.4

Both 14.7 and 15.4 round to 15