To the nearest thousandth what is the cosine of the angle formed by the line whose equation is y=2x and the positive x axis

Two trains leave stations 546 miles apart at the same time and travel toward each other. one train travels at 95 miles per hour while the other travels at 115 miles per hour l. how long will it take for the two trains to meet

What rule describes a dilation with a scale factor of 4 and the center of dilation at the origin?

15 oranges weigh 3.75 kilograms (kg). if each orange weighs approximately the same, approximately how much does each orange weigh?