Answer:
9.8
Step-by-step explanation:
X+x+2= 156
<span>2x+2=156 </span>
<span>2x= 154 </span>
<span>x= 77 </span>
<span>1st number = 77 </span>
<span>2nd number = 79</span>
The first one is correct :-)
Yes, considering that the ball cannot have two different heights at the same exact time.
