In January 2012, the social security administration increased benefits to its recipients for the first time since 2009. Before the increase James received $1,200 month. After the increase he received $1243.20 month. Find the percent increase in social security benefits

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

What is 1/3x5 on anuber line what does it look like on a number line