Gum is sold in packages of 20, 60, and 90 sticks. The 60 stick package sells for 4.68. What is the unit rate in dollars per stick of gum? Round your answer to the nearest cent.

The 90 stick package sells for 5.76. What is the unit rate in dollars per stick of gum? Round your answer to the nearest cent.

Using the unit rate for the 20 stick package of gum, what would be the cost of 100 sticks of gum?

(The questions are those 3 up there)

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

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?