Naseeb

Name the new compound formed when sodium sulfide is added to zinc sulfate. What is the chemical formuala for this new compound?

During a baseball season, a company pledges a donation to a charity of $5000 plus $100 for every home run hit by the local team. Does it make more sense to represent this situation using a sequence or a series? Explain your reasoning.

Simplify the fraction: (x^3-7x^2+17x-15)/(x-3) and solve numerically to find the two numbers close to 3 between which x must be kept if f(x) is to stay between 1.99 and 2.01.