Is y = -2x2 + 70 linear

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∣∣

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

Complete the steps to find 4.830 ÷ 5