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Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.