Writing Linear and Exponential Equations When a new charter school opened in 1980, there were 820 students enrolled. Using function notation, write a formula representing the number, N, of students attending this charter school t years after 1980, assuming that the student population: N (t) a) Increases 25% per year b) Decreases 8.3% per year c) Increases 71 students per year d) Decreases 32 students per year e) Increases 6.9% per year g) Remains constant (does not change) N(t) = = N(t) N (t) N(t) N(t) =