Solve the system of equations below and enter your answer as an ordered pair. 10x - 7y= -6 5x + 7y= 81​

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.

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.

Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)