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Statistical values are often given in percentages although they can also expressed as fractions as well as decimal numbers. Convert 1/5 to a decimal value. The answer is = 20%

                                            Gasoline Average Prices Per Gallon                                                        Year                         Price                                                           1985                      $1.50                                                        1995                     $1. 80 Suppose the cost of gasoline today is $3.00 per gallon. Using the 1985 price as the reference value, find the the price index number for gasoline today. The index number 150

“Children with short attention spans as measured by the Attention Span Observation Scale will have the same frequency of out-of-seat behavior as those with long attention spans.” is an example of a null hypothesis.

Solve the inequality by reading the given graph. State the solution set using interval notation.x3 – 6×2 – 6x + 72 ≤ 0 A related function is graphed below.x-intercepts: (-4, 0), (3, 0), (7, 0)

Solve the inequality. Write the solution set using interval notation and graph it.42z + 42 > 6(6z + 9)

Solve the equation.4x – 5 + 7(x + 1) = 6x + 7

Find the requested function value.f(x) = , g(x) = 9x + 1Find (g ∘ f)(-18).

Solve the equation. If necessary, round to the nearest thousandth.5(x – 3) = 21

For the pair of functions, find the indicated sum, difference, product, or quotient.f(x) = 8x + 2, g(x) = 3x + 4Find (fg)(x).

By graphing the function, visually estimate its domain and range.g(x) = x2 – 4