The equation of an ellipse is 2x^2 + y^2 +10y+19 = 0.
Write the equation in standard form.

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.