Which statement is true for the set of natural numbers? The set is closed under addition and closed under subtraction.

The set is not closed under addition and closed under subtraction.

The set is not closed under addition and not closed under subtraction.

The set is closed under addition and not closed under subtraction.

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.