State whether each pair of ratios are are equivalent. (yes or no)
a) 11 : 17 and 17 : 11
b) 15 : 35 and 25 : 45
c) 38 : 19 and 2 : 1

A) No, as the equivalent one should be a simplified version of the first one- from what air e learnt. B) No, as it is 3:7, 5:9 when it has been simplified. c) Yes, as 38:19 both ave the common factor of 19, therefore, it will equal 2:1 Hope this helps