The average salary for teachers in Orange County is $43,787 with a standard deviation of $4800. The school board decides to be generous for once and give all teachers holiday a bonus of 500 plus an additional retention bonus equal to 10 percent of their salary. What is
the mean and standard deviation of the bonus the teachers will receive?

Find the solution of system of equation y= x-4 y=4x+2

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered