50h + 0.20s + 40 part a. identify a coefficient, a variable, and a constant in this expression. part b. if corinne works for 25 hours and sells $300 in magazines, how much does she earn for the week? show your work to receive full credit. part c. if corinne gets a raise and begins earning $9 per hour, would the coefficient, variable, or constant in the equation change? why?

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)