A woman at the top of a cliff that is 225 feet tall drops her hairpin. The distance from the hairpin to the ground can be modeled by the equation h =-16+ + s, where h is the height
from the ground, t is the time in seconds, and s is the initial height from the ground in
feet. How long will it take for the hairpin to reach the ground? Round your answer to the
nearest tenth of a second.

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?