The manufacturer's price for a cooler is $28.50. A camping store that buys the coolers sells them for $40.76. What is the approximate percent of increase in the price of the coolers?

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?

Which geometric principle is used to justify the construction below?

Jubal wrote the four equations below. he examined them, without solving them, to determine which equation has no solution. which of jubal’s equations has no solution hurry