Jayla made a two-digit code. The first digit is odd. How many possible codes can she choose from? ​(Hint: Digits are numbers 0-9.)

The square root of 9x plus 7 plus the square rot of 2x equall to 7

The function models the number of accidents

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?