Help me please the questions r n the pictures

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

In an improper fraction, is the numerator equal to, less than, or greater than the denominator