What information can the positive and negative numbers on a number line provide?

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

Mr. rose asked his student to draw a quadrilateral with four unequal sides. an example of this kind of quadrilateral