The temperature at 7 pm at weatherstation minnesota was -5°f the temperature begin changing of the rate of -2.5°f per hour what was the temperature at 10 pm

It will be 17.5 because if you do -5 times 3 and then take -2.5 you would get these answer

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?