An egg is thrown off the top of a building. Its height in meters above the ground can be approximated by the polynomial 300  2t  4.9t2,
where t is the time since it was thrown in seconds.
a. How high is the egg above the ground after 5 seconds

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.