Select whether each equation has no solution, one solution, or infinitely many solutions.( I need help)

Find the vertex of the function given below y=x^2-6x+1

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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?