How much would $500 invested at 5% interest compounded monthly be worth after 4 years? Round your answer to the nearest cent.
A(t)= P(1+r/n)^nt

Which of the following expressions is equal to 2x^2+8

Find the solution of each of the following.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?