What is the y-intercept of the exponential function? f(x)=−18(4)x+3+6?

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?

What 8/12+8/11 in another way than and improper fraction

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cos of 61.6