As an estimation 5 miles is 8 km, convert 57.5 miles to km​

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2