Which expressions are equivalent to -6(b+2)+8

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

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.