Ethan has 3 more than twice as many quarters as francis. if they have 18 quarters altogether, how many quarters does ethan have.?

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

Which of the following circles have their centers in the third quadrant? check all that apply.

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.