Answer:
The answer for it is 60.
Step-by-step explanation:
5*0+20*0+60
And due to the simplification by keeping the value 0 in place of x. So if any term is multiplied with 0 the value of that term will be 0. So by adding 0+0+60 . Therefore , the height will be 60 .
More explanation:
At the time of launch, x will be 0 because the object have not been thrown yet.So its height will be 60.
