If a number is added to the numerator of 2/3 and twice as much is subtracted from the denominator, the result is -1. Find the number.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

The table shows the results of three plays in a football game. what is the net result of the three plays? football game 1st play 5 yards 2nd play -9 yards 3rd play 12 yards