Ben bought 1/2 pound of cheese for 3 sandwiches. if he puts the same amount of cheese on each sandwich how much cheese will each sandwich have?

In the image, point a marks the center of the circle. which two lengths must form a ratio of 1 : 2? (options are in the images since thought they were harmful phrases)

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Solve: 3x+y=6 4x-2y=18 show all work !