X would be 0.5. Hope this helped
Answer:
400
Step-by-step explanation:
354>=350 and thus is rounded upwards to 400.
Answer:
10,454,400 sec
Step-by-step explanation:
1Day=24hr
1hr=60min
1min=60sec
121 days=121*24*60*60=10,454,400sec
If i were you, i would add one to 7x and fifteen. this gives you x^2+8x+16, a perfect square of x+4.