22. Solve for x. log7 X = -3 logx 64 = 619. The function f is dened by the following rule. fix) = 5" Find fix) for each xvalue in the table. 20. How much should be invested now at an interest rate of 4% per year, compounded continuously, to have $5,000 in 7 years? Round to the nearest cent. 21. Rewrite each equation as requested. a. Rewrite as a logarithmic equation. 6'2 = i b. Rewrite as an exponential equation. L093 31 = 4 17. Use a calculator to evaluate each expression. Round your answers to the nearest thousandth. Do not round any intermediate computations. 31e07 E3.55 18. Use a calculator to evaluate each expression. Round your answers to the nearest thousandth. Do not round any intermediate computations. log 52.3 In15. For each function, state whether it is linear, quadratic, or exponential. Function 1 Function 2 Function 3 -2 -4 0 4 2 9 -1 -10 5 3 11 0 -12 2 7 4 15 -10 W 11 5 21 2 -4 4 19 6 29 3 6 5 35 7 39 Linear Linear Linear Quadratic Quadratic Quadratic Exponential Exponential Exponential None of the above None of the above None of the above 16. The number of Canada geese is counted every December 1 at the local lake. When the count started, there were 35,000 Canada geese. Each year since, the population of Canada geese has decreased by 3.5%. Let t be the number of years since the count began. Let y be the total number of Canada geese. Write an exponential function showing the relationship between y and t.13. The value of a used car can be calculated using the following exponential function. Wt] = 45,0D0(0.855}' Find the initial value. $ Does the function represent growth or decay? By what percent does the value of the car change each year? \"it. 14. The number of children attending public school in a certain city increased at a rate of 1.5% per year. This was due to an increase in the city's population. If the school district currently has 5,127 students, how many students can the school district expect to have in 5 years? Round to the next whole student. 11. The graph of a quadratic equation with vertex (1, 3) is shown below. Find the domain and the range. +' y = 2x3 + 4.1: + 5 HI domain: range: 12. If the rate of ination is 7.?% per year, the future price of a Keurig K-supreme Plus Coffee Maker can be modeled by the following exponential function, where t is the number of years from today. pft) = 190(1.U?7)' Find the current price of the item and the price in 5 years from today. Round your answers to the nearest cent as necessary