A surface S is implicitly defined by the equation -xy^3+5xz+yz^2=5
Find an equation that is tangent to S at (1,1,1)

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?