Question

Alain throws a stone off a bridge into a river below.

The stone's height h (in meters above the water). t seconds after Alain threw it, is
modeled by:
h=-4.9+2+10t+18
What is the height of the stone at the time it is thrown?​

Answer 1

I did get the one in the tux ‍♂️ and the other one ☝️