Alexandra give 1/2 of her marbles to Tyler, who gives 2/3 of what he receives to jan, who gives 3/4 of what she receives to jerry. If each has a counting number of marbles what is the fewest number of marbles that Alexandra could have started with?

What is the product? (x2+3y+7) [yy+1)

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

What is the measure of ba (the minor arc) in the diagram below?