Concept:Each term is obtained by multiplying the previous term by a constant factor of 0.9 (or 9/10).Explanation:Start with 80.Multiply 80 by 0.9: 80×0.9=72.Multiply 72 by 0.9: 72×0.9=64.8.Multiply 64.8 by 0.9: 64.8×0.9=58.32.Multiply 58.32 by 0.9: 58.32×0.9=52.488.Thus, the next term is 52.488.
