Margo can purchase tile at a store for $0.79 per tile and rent a tile saw for $16. At another store she can borrow the tile saw for free if she buys tiles there for $1.59 per tile. How many tiles must she buy for the
cost to be the same at both stores?

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?

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle