Determine if each set of ordered pairs represents a function

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

In the diagram below,abc is congruent to dec what is the value of x

Acompound inequality is graphed, and its graph consists of all real numbers. which open scentence could have resulted in this solution set r> 3 or r< -2. r< 3 or r< -2. r> 3 or r> -2. r< 3 or r> -2 plz asap