Which number sentence is not
a.15/20=3/4
b.4/12=1/3
c.2/5=6/10
d.10/15=2/3

Is think it might be c

C is wrong 2/5 isn't equal to 6/10

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?