Name the property the equation illustrates.

7 + (4 + 4) = (7 + 4) + 4

associative property of addition

commutative property of addition

commutative property of multiplication

inverse property of addition

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)?

Combine the information in the problem and the chart using the average balance method to solve the problem.

Hundred and tens tables to make 430 in five different ways