Alyssa is 3 years older than gladys, william is twice as old as alyssa altogether their ages total 89 how old is gladys ?

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

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%

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.