Plastic cups come in packages of twenty-four and straws come in packages of twenty. what's the smallest number of each that could be bought so that you had the same amount of cups and straws?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Write 17/20 as a decimal and as a percent.

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.