The sum of two numbers i nine. Using x to represent the larger of the two numbers, translate "the difference between one more than the large number and twice the smaller number" into a variable expression. Then simplify.

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?