Okay it would be greatly appreciated if someone could help me with some math questions that I had for homework! I am a junior high school student in the us and my math teachers aren't helping much. If you could explain how to answer these questions as well that would be amazing.

If there's a 2 beside a variable it means squared, my keyboard doesn't have a mini 2 to place in these questions (example, t2 or x2)



Question 1)

Complete the square:

S(t)=-16t2 + 220t



Question 2)

A doll company uses the function p(d)=-2c2+14c-20 to determine potential profit. In this function P represent profit in hundreds of thousands and d is the number of dolls made in the thousands. Could they make $500,000 of profit?



Question 3)

Justify a domain and range for s(t)=-16t2 + 220t



Question 4)

The length of a rectangle is 17 more than the width, while the diagonal is 18 more than the width. If you were to determine the length of the rectangle, write the equation the required equation. Do not solve.



Question 5)

A bungee jump has the equation h(t)=4.5t2 -65t, where t represent time in seconds and h(t) is the height in feet below the bridge platform being lept off from. If you included a safety cushion of 15 feet beyond the equation results, how high should the bridge be for a safe jump?