Answer:
9
Step-by-step explanation:
7+2=9 goofy
Answer: 14 Units
Step-by-step explanation: Subtract (10-2) and (11-5)
hi
-16t²+250 = 75
-16t² = 75 -250
-16t² = -175
t² = -175 /-16
t² = 175/16
Here there si two solutions : t =
and t = - 
However, as time cannot rewind, we will keep only positive solution
So t = 
in seconds it will be : 3.3 seconds