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Solve the problem.How much money does the average professional football fan spend on food at a single football game? That question was posed to 60 randomly selected football fans. The sampled results show that the sample mean was $70.00 and prior sampling indicated that the population standard deviation was $17.50. Use this information to create a 95 percent confidence interval for the population mean.

Solve the problem.You have a $4,041 credit card debt, and you plan to pay it off through monthly payments of If you are being charged 16% interest per year, how long (to the nearest tenth of a year) will it take you to repay your debt?

Solve the exponential equation.3(10 – 2x) = 9

Solve the problem.A random sample of n measurements was selected from a population with unknown mean μ and known standard deviation σ. Calculate a 95% confidence interval for μ for the given situation. Round to the nearest hundredth when necessary. n = 125, = 25, σ = 20

Graph the function.y = log4 x + 4

Solve the problem.In order to purchase a home, a family borrows at an annual interest rate of 11%, to be paid back over a period in equal monthly payments. What is their monthly payment?

Convert to exponential form.log3 = -3

Solve the problem.In the Smoky Mountains of Tennessee, the percent of moisture that falls as snow rather than rain is approximated by where P is the percent of snow moisture at an altitude h feet. What altitude corresponds to 7 percent snow moisture? Round to the nearest hundred feet.

Solve the problem.To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed. The FDA tests on this cigarette yielded mean nicotine content of 28.3 milligrams and standard deviation of 2.4 milligrams for a sample of cigarettes. Construct a 90% confidence interval for the mean nicotine content of this brand of cigarette.

What is the x-intercept of function y=x-4