There are 8 blue marbles, 9 green marbles, and 7 yellow marbles in a jar. What is the probability of picking a blue marble on the first try?

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no