Maria measures the longer side of a dollar bill using a ruler at school. Which of the following is most likely the quantity she measured.

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%