An electrician charges a set fee of $150 for every house call and then charges an additional $70 per hour. Write an equation for C, in terms of
t, representing the total cost of the electrician's services if the electrician spends t hours at the house working.

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

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?

[tex]5 \times1 \frac{12}{13} [/tex] me