Maria was foing a assroom survey. she asked the girls in the class how many siblings they had and recorded the results: 1,2,3,6,7,9,9,9,10. determine the mean (rounded to the nearest tenth) the median, mode, and range of the results

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

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?