Alarge random sample of american students in seventh grade showed that 20\%20%20, percent of them were reading below grade level.
based on this data, which of the following conclusions are valid?

Agc and bgd are vertical angles

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?