Can someone solve this for me? i need a math wiz to fill in the blanks.

mentally add or subtract these numbers to the end. fill in the blanks.

3,829; 4,829; ; ; 6,729; ; 16,629; 15,629; 115,629; ;
315,629; 315,639; ; 415,649; ; ; 715,649

Three coins are flipped. what is the probability that there will be at least two tails?

36 inches/second = yards/minute how many yards?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3