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After scoring a touchdown, the Decatur Sallies attempt to kick for an extra point 85% of the time. The other 15% of the time, they attempt a running or passing play for two extra points. They are successful in 90% of their tries for one extra point and 40% of their tries for two extra points. If the sallies score a touch-down, what is the probability that they add at least on extra point?
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