1. A Rasmussen Reports national survey of 1000 adult Americans found that 180 adults dreaded Valentine's Day. Construct a 90% confidence interval for the population proportion of adult Americans who dread Valentine's Day. Show the formula you used and all the steps in your calculation.​

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.