Which conjunction or disjunction is equivalent to the open sentence |a – 9| ≤ 4. a. a – 9 ≥ 4 and a – 9 ≤ –4 b. a – 9 ≤ 4 or a – 9 ≥ –4 c. a – 9 ≤ 4 and a – 9 ≤ –4 d. a – 9 ≤ 4 and a – 9 ≥ –4

The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x