What two coins make 30 cents and one is not a nickel?

Can you please elaborate on the question? Are you asking about which two coins can be combined to make a total of 30 cents, given that one of the coins is not a nickel? If so, there are several combinations possible. For instance, a quarter (25 cents) and a penny (1 cent) make 26 cents, which is close but not exactly 30 cents. However, if we include a dime (10 cents) in addition to the quarter, that would total 35 cents, exceeding the desired 30 cents. Assuming you're looking for an exact match, a more accurate combination would be a dime (10 cents) and two dimes (20 cents), totaling 30 cents, without using a nickel. But if we strictly adhere to the prompt that "one is not a nickel," and we also want to include a coin that isn't a dime (since we've already used it twice), we could also consider a quarter (25 cents) combined with a penny (5 cents), although this doesn't exactly align with the traditional denominations since a penny is actually worth 1 cent, not 5 cents. Perhaps the intended question was about using non-standard or novelty coins? If so, the possibilities would depend on the specific values and denominations of those coins. In any case, the key is to find two coins that add up to 30 cents, with at least one not being a nickel.