Lenny's dentist bill was $280 for each of his new replacement tooth implants. His dental insurance paid 80% of his bill. How much did Lenny pay?

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

Consider the graph of the exponential function y=3(2)×

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.