How to make sense of a problem

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?

Parallel lines r and s are cut by two transversales, parallel lines t and u. which angles are corresponding angles with angle 8

What are the solutions to x^2 + 4x - 12 = 0?