Answer:
A. 3s
Step-by-step explanation:
The height of the object after t seconds is given by:

When will the object hit the ground?
It hits the ground after t seconds, and t is found when
. So







3 seconds, so the correct answer is given by option a.
Answer:
In seven minutes she can do 91 push ups
Step-by-step explanation:
26*3=78
78+13=91
Answer:
Yes
Step-by-step explanation:
32 divided by 45 = .7111111111111111111
You are dividing to find the answer