Combine like terms:3n-10+1-4n

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?