Identify the graph of the equation. what is the angle of rotation for the equation? 2xy – 9 = 0

a. hyperbola; 90° c. ellipse; 30° b. hyperbola; 45° d. ellipse; 60° select the best answer from the choices provided a b c d

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a.m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?