A family shopping at the mall. They started shopping at 1:00 pm. By 2:00 pm. They had already spent $60. They finished at 5:00 pm at which they had spent $180 total during the time they were at the mall. What is their average rate of spending in dollars per hour from 2:00 pm to 5:00 pm?

48x^7y^3. the app is photomath

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?