A rectangular pyramid has a base that is 13 centimeters long and 13 centimeters wide. The pyramid's slant height is 15 centimeters. What is its surface area?

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

How does reflecting or rotating a figure change the interior angles of the figure?

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.