Shelby and shannon are both plumbers. shelby charges $15 per hour whilst shannon charges $2 per pipe fixed. shelby fixes 10 pipes per hour. a hotel wants to hire a plumber to fix 40 pipes. which plumber should the hotel hire?

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

In a sample of 200 residents of georgetown county, 120 reported they believed the county real estate taxes were too high. develop a 95 percent confidence interval for the proportion of residents who believe the tax rate is too high. (round your answers to 3 decimal places.) confidence interval for the proportion of residents is up to . would it be reasonable to conclude that the majority of the taxpayers feel that the taxes are too high?

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.