Answer 1-7 and show work please

1 In the projectile equation, h(t) = -16t2 + 12.3t + 4.9, what number indicates gravity in feet/sec?? Explain. 2 In the projectile equation in #1 above, what number indicates the height of the object above ground level when launched? Explain. 3 In Ex. 2 above, when does the object hit the ground? Show your work. See Ex. 1, B How long before the object hits the ground after launch? 4 In Ex. 3 above, when does the object hit the ground? Show your work. See Ex. 1, B How long before the object hits the ground after launch? B Solve the following problems showing steps as done in the lesson content (see Exs. 1 - 6) 5 Four times the sum of three consecutive odd integers is 765 less than three times the product of the larger two numbers. What are the two sets of 3 integers? REVIEW in lesson above EX. 6 Ill Consecutive number problems In these types of problems, setting up the variables is critical. Let n = 1st integer Consecutive Odd n + 2 n + 4 6 A ball is launched upward at a speed of 20 meters per second (m/s) from a 60-meter tall platform. The equation for the ball's height (h in meters) at time t seconds after launch is h = -4.912 + 20t + 60. What is the height above the ground when the ball is launched? 7 A ball is launched upward at a speed of 20 meters per second (m/s) from a 60-meter tall platform. The equation for the ball's height (h in meters) at time t seconds after launch is h = -4.912 + 20t + 60. How long before the ball hits the ground? Include units of measurement and round to the nearest hundredth