Ameteorologist conducts an observational study in which she measures the hourly temperature of her city for 30 consecutive days. what is the data collected in this observational study? a. the set of all temperatures recorded during the study b. the average temperature over the 30 days c. the daily temperatures taken over the 30 days. (incorrect)d. the number of days in which temperatures were recorded. and : )

Hurry and answer this! circle x with a radius of 6 units and circle y with a radius of 2 units are shown which steps would prove the circles similar? translate the circles so they share a common center point, and dilate circle y by a scale factor of 4. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 4. translate the circles so they share a common center point, and dilate circle y by a scale factor of 3. translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle y by a scale factor of 3

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?