Donna took out a loan for 11 months and was charged simple interest at an annual rate of 2.4%. The total interest she paid on the loan was $143.
How much money did Donna borrow?

Which of the following expressions is equal to 2x^2+8

What expression is equivalent to 42x-56y

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?