Two events A and B are mutually exclusive. If P(A) = 0.2 and P(B) = 0.4 What is the value of P (A or B)? Justify your answer.

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students