In a study a researcher takes a random sample of 620 and finds that 359 are smokers. Calculate the sample proportion of smokers

How to do this , and can some one explain

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

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