(3x - 3) (2x + 5)
18° encontrar la medida de cada angulo en los triangulos presentar el procedimiento

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?